diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableBodyLowerer.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableBodyLowerer.java
index 9500ddf1..0a3ca1fe 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableBodyLowerer.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableBodyLowerer.java
@@ -173,23 +173,36 @@ final class PbsExecutableBodyLowerer {
             reportUnsupportedLowering("path assignment lowering is not supported in executable lowering v1", assignStatement.span(), context);
             return false;
         }
-        final var targetSlot = context.resolveLocalSlot(target.rootName());
-        if (targetSlot == null) {
-            reportUnsupportedLowering("assignment target is not a known local: " + target.rootName(), assignStatement.span(), context);
+        final var targetLocalSlot = context.resolveLocalSlot(target.rootName());
+        final var targetGlobalSlot = targetLocalSlot == null ? context.resolveGlobalSlot(target.rootName()) : null;
+        if (targetLocalSlot == null && targetGlobalSlot == null) {
+            reportUnsupportedLowering("assignment target is not a known local or global: " + target.rootName(), assignStatement.span(), context);
             return false;
         }
         if (assignStatement.operator() == PbsAst.AssignOperator.ASSIGN) {
             final var localOwner = callsiteEmitter.resolveExpressionOwnerForLowering(assignStatement.value(), context);
             lowerExpression(assignStatement.value(), context);
-            context.bindLocalOwner(target.rootName(), localOwner);
-            emitSetLocal(targetSlot, assignStatement.span(), context);
+            if (targetLocalSlot != null) {
+                context.bindLocalOwner(target.rootName(), localOwner);
+                emitSetLocal(targetLocalSlot, assignStatement.span(), context);
+            } else {
+                emitSetGlobal(targetGlobalSlot, assignStatement.span(), context);
+            }
             return false;
         }
-        emitGetLocal(targetSlot, assignStatement.span(), context);
+        if (targetLocalSlot != null) {
+            emitGetLocal(targetLocalSlot, assignStatement.span(), context);
+        } else {
+            emitGetGlobal(targetGlobalSlot, assignStatement.span(), context);
+        }
         lowerExpression(assignStatement.value(), context);
         emitBinaryOperatorInstruction(compoundAssignBinaryOperator(assignStatement.operator()), assignStatement.span(), context);
-        context.bindLocalOwner(target.rootName(), "");
-        emitSetLocal(targetSlot, assignStatement.span(), context);
+        if (targetLocalSlot != null) {
+            context.bindLocalOwner(target.rootName(), "");
+            emitSetLocal(targetLocalSlot, assignStatement.span(), context);
+        } else {
+            emitSetGlobal(targetGlobalSlot, assignStatement.span(), context);
+        }
         return false;
     }
 
@@ -446,6 +459,53 @@ final class PbsExecutableBodyLowerer {
         final var slot = context.localSlotByNameId().get(context.nameTable().register(identifierExpr.name()));
         if (slot != null) {
             emitGetLocal(slot, identifierExpr.span(), context);
+            return;
+        }
+        final var globalSlot = context.resolveGlobalSlot(identifierExpr.name());
+        if (globalSlot != null) {
+            emitGetGlobal(globalSlot, identifierExpr.span(), context);
+            return;
+        }
+        final var constDecl = context.resolveConstDecl(identifierExpr.name());
+        if (constDecl != null && constDecl.initializer() != null) {
+            lowerConstExpression(constDecl.initializer(), context);
+        }
+    }
+
+    private void lowerConstExpression(
+            final PbsAst.Expression expression,
+            final PbsExecutableLoweringContext context) {
+        if (expression == null) {
+            return;
+        }
+        switch (expression) {
+            case PbsAst.IntLiteralExpr intLiteralExpr -> lowerIntLiteral(intLiteralExpr, context);
+            case PbsAst.BoundedLiteralExpr boundedLiteralExpr ->
+                    lowerIntLiteral(new PbsAst.IntLiteralExpr(boundedLiteralExpr.value(), boundedLiteralExpr.span()), context);
+            case PbsAst.StringLiteralExpr stringLiteralExpr -> emitPushConst(stringLiteralExpr.value(), stringLiteralExpr.span(), context);
+            case PbsAst.BoolLiteralExpr boolLiteralExpr -> emitPushBool(boolLiteralExpr.value(), boolLiteralExpr.span(), context);
+            case PbsAst.GroupExpr groupExpr -> lowerConstExpression(groupExpr.expression(), context);
+            case PbsAst.UnaryExpr unaryExpr -> {
+                lowerConstExpression(unaryExpr.expression(), context);
+                emitUnaryOperatorInstruction(unaryExpr.operator(), unaryExpr.span(), context);
+            }
+            case PbsAst.BinaryExpr binaryExpr -> {
+                lowerConstExpression(binaryExpr.left(), context);
+                lowerConstExpression(binaryExpr.right(), context);
+                emitBinaryOperatorInstruction(binaryExpr.operator(), binaryExpr.span(), context);
+            }
+            case PbsAst.IdentifierExpr identifierExpr -> {
+                final var referenced = context.resolveConstDecl(identifierExpr.name());
+                if (referenced != null && referenced.initializer() != null) {
+                    lowerConstExpression(referenced.initializer(), context);
+                } else {
+                    reportUnsupportedLowering("const identifier is not lowerable: " + identifierExpr.name(), identifierExpr.span(), context);
+                }
+            }
+            default -> reportUnsupportedLowering(
+                    "const expression is not lowerable in executable lowering v1",
+                    expression.span(),
+                    context);
         }
     }
 
@@ -585,6 +645,24 @@ final class PbsExecutableBodyLowerer {
                 span));
     }
 
+    private void emitSetGlobal(
+            final int slot,
+            final p.studio.compiler.source.Span span,
+            final PbsExecutableLoweringContext context) {
+        context.instructions().add(new IRBackendExecutableFunction.Instruction(
+                IRBackendExecutableFunction.InstructionKind.SET_GLOBAL,
+                ModuleId.none(),
+                "",
+                null,
+                null,
+                null,
+                "",
+                "",
+                slot,
+                null,
+                span));
+    }
+
     private String compoundAssignBinaryOperator(final PbsAst.AssignOperator operator) {
         return switch (operator) {
             case ADD_ASSIGN -> "+";
@@ -681,6 +759,24 @@ final class PbsExecutableBodyLowerer {
                 span));
     }
 
+    private void emitGetGlobal(
+            final int slot,
+            final p.studio.compiler.source.Span span,
+            final PbsExecutableLoweringContext context) {
+        context.instructions().add(new IRBackendExecutableFunction.Instruction(
+                IRBackendExecutableFunction.InstructionKind.GET_GLOBAL,
+                ModuleId.none(),
+                "",
+                null,
+                null,
+                null,
+                "",
+                "",
+                slot,
+                null,
+                span));
+    }
+
     private void reportUnsupportedLowering(
             final String message,
             final p.studio.compiler.source.Span span,
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableCallsiteEmitter.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableCallsiteEmitter.java
index c5b40327..f2882cc7 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableCallsiteEmitter.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableCallsiteEmitter.java
@@ -361,7 +361,9 @@ final class PbsExecutableCallsiteEmitter {
             final PbsExecutableLoweringContext context) {
         return switch (receiver) {
             case PbsAst.CallExpr ignored -> true;
-            case PbsAst.IdentifierExpr identifierExpr -> context.resolveLocalSlot(identifierExpr.name()) != null;
+            case PbsAst.IdentifierExpr identifierExpr ->
+                    context.resolveLocalSlot(identifierExpr.name()) != null
+                            || context.resolveGlobalSlot(identifierExpr.name()) != null;
             case PbsAst.GroupExpr groupExpr -> receiverProducesRuntimeValue(groupExpr.expression(), context);
             default -> false;
         };
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringContext.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringContext.java
index 3551029d..8bb642a6 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringContext.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringContext.java
@@ -58,6 +58,14 @@ final class PbsExecutableLoweringContext {
         return metadataIndex.builtinConstOwnerByNameId();
     }
 
+    Map<NameId, Integer> globalSlotByNameId() {
+        return metadataIndex.globalSlotByNameId();
+    }
+
+    Map<NameId, p.studio.compiler.pbs.ast.PbsAst.ConstDecl> constDeclByNameId() {
+        return metadataIndex.constDeclByNameId();
+    }
+
     Map<String, String> builtinCanonicalBySourceType() {
         return metadataIndex.builtinCanonicalBySourceType();
     }
@@ -118,6 +126,20 @@ final class PbsExecutableLoweringContext {
         return localSlotByNameId.get(nameTable.register(localName));
     }
 
+    Integer resolveGlobalSlot(final String globalName) {
+        if (globalName == null || globalName.isBlank()) {
+            return null;
+        }
+        return globalSlotByNameId().get(nameTable.register(globalName));
+    }
+
+    p.studio.compiler.pbs.ast.PbsAst.ConstDecl resolveConstDecl(final String constName) {
+        if (constName == null || constName.isBlank()) {
+            return null;
+        }
+        return constDeclByNameId().get(nameTable.register(constName));
+    }
+
     int declareLocalSlot(final String localName) {
         final var nameId = nameTable.register(localName);
         final var existing = localSlotByNameId.get(nameId);
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringModels.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringModels.java
index e75b7828..7bc353b1 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringModels.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableLoweringModels.java
@@ -44,6 +44,8 @@ public class PbsExecutableLoweringModels {
             Map<NameId, List<IRReservedMetadata.HostMethodBinding>> hostByMethodName,
             Map<String, String> builtinCanonicalBySourceType,
             Map<NameId, String> builtinConstOwnerByNameId,
+            Map<NameId, Integer> globalSlotByNameId,
+            Map<NameId, PbsAst.ConstDecl> constDeclByNameId,
             Map<PbsIntrinsicOwnerMethodKey, List<IRReservedMetadata.IntrinsicSurface>> intrinsicByOwnerAndMethod,
             Map<PbsIntrinsicCanonicalKey, String> intrinsicReturnOwnerByCanonical) {
     }
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableMetadataIndexFactory.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableMetadataIndexFactory.java
index 9249bf81..a189bebd 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableMetadataIndexFactory.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableMetadataIndexFactory.java
@@ -27,6 +27,8 @@ final class PbsExecutableMetadataIndexFactory {
         final var hostByMethodName = indexHostBindingsByMethodName(reservedMetadata, nameTable);
         final var builtinCanonicalBySourceType = indexBuiltinCanonicalBySourceType(reservedMetadata);
         final var builtinConstOwnerByNameId = indexBuiltinConstOwners(reservedMetadata, nameTable);
+        final var globalSlotByNameId = indexGlobalSlots(ast, nameTable);
+        final var constDeclByNameId = indexConstDecls(ast, nameTable);
         final var builtinSignatureByOwnerAndMethod = indexBuiltinSignatures(
                 ast,
                 supplementalTopDecls,
@@ -44,6 +46,8 @@ final class PbsExecutableMetadataIndexFactory {
                 hostByMethodName,
                 builtinCanonicalBySourceType,
                 builtinConstOwnerByNameId,
+                globalSlotByNameId,
+                constDeclByNameId,
                 intrinsicByOwnerAndMethod,
                 intrinsicReturnOwnerByCanonical);
     }
@@ -81,6 +85,33 @@ final class PbsExecutableMetadataIndexFactory {
         return builtinConstOwnerByNameId;
     }
 
+    private Map<NameId, Integer> indexGlobalSlots(
+            final PbsAst.File ast,
+            final NameTable nameTable) {
+        final var globalSlotByNameId = new HashMap<NameId, Integer>();
+        var nextSlot = 0;
+        for (final var topDecl : ast.topDecls()) {
+            if (!(topDecl instanceof PbsAst.GlobalDecl globalDecl)) {
+                continue;
+            }
+            globalSlotByNameId.putIfAbsent(nameTable.register(globalDecl.name()), nextSlot++);
+        }
+        return globalSlotByNameId;
+    }
+
+    private Map<NameId, PbsAst.ConstDecl> indexConstDecls(
+            final PbsAst.File ast,
+            final NameTable nameTable) {
+        final var constDeclByNameId = new HashMap<NameId, PbsAst.ConstDecl>();
+        for (final var topDecl : ast.topDecls()) {
+            if (!(topDecl instanceof PbsAst.ConstDecl constDecl)) {
+                continue;
+            }
+            constDeclByNameId.putIfAbsent(nameTable.register(constDecl.name()), constDecl);
+        }
+        return constDeclByNameId;
+    }
+
     private Map<PbsIntrinsicOwnerMethodKey, PbsAst.FunctionSignature> indexBuiltinSignatures(
             final PbsAst.File ast,
             final ReadOnlyList<PbsAst.TopDecl> supplementalTopDecls,
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableStackAnalyzer.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableStackAnalyzer.java
index 42216581..10cea500 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableStackAnalyzer.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/lowering/PbsExecutableStackAnalyzer.java
@@ -38,8 +38,8 @@ final class PbsExecutableStackAnalyzer {
             var outHeight = incomingHeightByInstruction.get(index);
 
             switch (instruction.kind()) {
-                case PUSH_I32, PUSH_BOOL, PUSH_CONST, GET_LOCAL -> outHeight += 1;
-                case POP, SET_LOCAL -> {
+                case PUSH_I32, PUSH_BOOL, PUSH_CONST, GET_LOCAL, GET_GLOBAL -> outHeight += 1;
+                case POP, SET_LOCAL, SET_GLOBAL -> {
                     if (outHeight <= 0) {
                         throw new ExecutableLoweringAnalysisException(
                                 "stack underflow at " + instruction.kind().name().toLowerCase() + ": need=1 have=" + outHeight);
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/semantics/PbsFlowAssignmentAnalyzer.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/semantics/PbsFlowAssignmentAnalyzer.java
index 706a6118..e5235ddd 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/semantics/PbsFlowAssignmentAnalyzer.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/pbs/semantics/PbsFlowAssignmentAnalyzer.java
@@ -108,6 +108,11 @@ final class PbsFlowAssignmentAnalyzer {
                 return new AssignmentTargetResolution(localType, true);
             }
 
+            final var globalType = model.globalTypes.get(rootName);
+            if (globalType != null) {
+                return new AssignmentTargetResolution(globalType, true);
+            }
+
             if (isKnownNonAssignableRoot(rootName, model)) {
                 Diagnostics.error(diagnostics,
                         PbsSemanticsErrors.E_SEM_ASSIGN_TARGET_NOT_ASSIGNABLE.name(),
@@ -138,6 +143,8 @@ final class PbsFlowAssignmentAnalyzer {
             final var localType = scope.resolve(rootName);
             if (localType != null) {
                 currentType = localType;
+            } else if (model.globalTypes.containsKey(rootName)) {
+                currentType = model.globalTypes.get(rootName);
             } else if (model.serviceSingletons.containsKey(rootName)) {
                 currentType = model.serviceSingletons.get(rootName);
             } else if (model.constTypes.containsKey(rootName)) {
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/services/PBSFrontendPhaseService.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/services/PBSFrontendPhaseService.java
index 91ff0df0..a293e925 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/services/PBSFrontendPhaseService.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/main/java/p/studio/compiler/services/PBSFrontendPhaseService.java
@@ -253,6 +253,8 @@ public class PBSFrontendPhaseService implements FrontendPhaseService {
             callableSignatures.add(new CallableSignatureRef(entryPointModuleId, entryPointCallableName, 0, "() -> unit"));
             final var instructions = new ArrayList<IRBackendExecutableFunction.Instruction>();
             instructions.add(getGlobalInstruction(bootGuardSlot, frameExecutable.span()));
+            instructions.add(pushBoolInstruction(true, frameExecutable.span()));
+            instructions.add(eqInstruction(frameExecutable.span()));
             instructions.add(jumpIfTrueInstruction("bootstrap_done", frameExecutable.span()));
             for (final var moduleId : sortedModuleIds) {
                 final var moduleInitCallableId = moduleInitCallableIds.get(moduleId);
@@ -297,7 +299,7 @@ public class PBSFrontendPhaseService implements FrontendPhaseService {
                     0,
                     0,
                     0,
-                    1,
+                    2,
                     ReadOnlyList.wrap(instructions),
                     frameExecutable.span()));
 
@@ -459,6 +461,16 @@ public class PBSFrontendPhaseService implements FrontendPhaseService {
                 span);
     }
 
+    private IRBackendExecutableFunction.Instruction eqInstruction(final Span span) {
+        return new IRBackendExecutableFunction.Instruction(
+                IRBackendExecutableFunction.InstructionKind.EQ,
+                "",
+                null,
+                null,
+                null,
+                span);
+    }
+
     private IRBackendExecutableFunction.Instruction labelInstruction(
             final String label,
             final Span span) {
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/PbsFrontendCompilerTest.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/PbsFrontendCompilerTest.java
index 8b11df44..fcc0f99a 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/PbsFrontendCompilerTest.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/PbsFrontendCompilerTest.java
@@ -134,6 +134,59 @@ class PbsFrontendCompilerTest {
                 i.kind() == p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.CALL_FUNC));
     }
 
+    @Test
+    void shouldLowerGlobalReadsAndWritesInExecutableBodies() {
+        final var source = """
+                declare global tile_id: int = 0;
+
+                fn tick() -> int {
+                  tile_id = tile_id + 1;
+                  if (tile_id > 7) {
+                    tile_id = 0;
+                  }
+                  return tile_id;
+                }
+                """;
+
+        final var diagnostics = DiagnosticSink.empty();
+        final var compiler = new PbsFrontendCompiler();
+        final var fileBackend = compiler.compileFile(new FileId(46), source, diagnostics);
+
+        assertTrue(diagnostics.isEmpty(), diagnostics.stream().map(d -> d.getCode() + ":" + d.getMessage()).toList().toString());
+        final var executableTick = fileBackend.executableFunctions().stream()
+                .filter(fn -> fn.callableName().equals("tick"))
+                .findFirst()
+                .orElseThrow();
+        assertTrue(executableTick.instructions().stream().anyMatch(i ->
+                i.kind() == p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.GET_GLOBAL));
+        assertTrue(executableTick.instructions().stream().anyMatch(i ->
+                i.kind() == p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.SET_GLOBAL));
+    }
+
+    @Test
+    void shouldLowerUserConstIdentifiersInExecutableBodies() {
+        final var source = """
+                declare const MAX_FRAMES: int = 10;
+
+                fn tick(frame_counter: int) -> bool {
+                  return frame_counter > MAX_FRAMES;
+                }
+                """;
+
+        final var diagnostics = DiagnosticSink.empty();
+        final var compiler = new PbsFrontendCompiler();
+        final var fileBackend = compiler.compileFile(new FileId(47), source, diagnostics);
+
+        assertTrue(diagnostics.isEmpty(), diagnostics.stream().map(d -> d.getCode() + ":" + d.getMessage()).toList().toString());
+        final var executableTick = fileBackend.executableFunctions().stream()
+                .filter(fn -> fn.callableName().equals("tick"))
+                .findFirst()
+                .orElseThrow();
+        assertTrue(executableTick.instructions().stream().anyMatch(i ->
+                i.kind() == p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.PUSH_I32
+                        && "10".equals(i.label())));
+    }
+
     @Test
     void shouldClassifyCallableCallEvenWhenNameLooksHostLike() {
         final var source = """
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/semantics/PbsSemanticsAssignmentTest.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/semantics/PbsSemanticsAssignmentTest.java
index ce627a17..d9f43448 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/semantics/PbsSemanticsAssignmentTest.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/pbs/semantics/PbsSemanticsAssignmentTest.java
@@ -42,6 +42,28 @@ class PbsSemanticsAssignmentTest {
                 d.getCode().equals(PbsSemanticsErrors.E_SEM_FIELD_WRITE_ACCESS_DENIED.name())));
     }
 
+    @Test
+    void shouldAllowGlobalAssignments() {
+        final var source = """
+                declare global tile_id: int = 0;
+
+                fn tick(next: int) -> int {
+                  tile_id = tile_id + next;
+                  return tile_id;
+                }
+                """;
+        final var diagnostics = DiagnosticSink.empty();
+
+        new PbsFrontendCompiler().compileFile(new FileId(0), source, diagnostics);
+
+        assertFalse(diagnostics.stream().anyMatch(d ->
+                d.getCode().equals(PbsSemanticsErrors.E_SEM_ASSIGN_TARGET_UNRESOLVED.name())));
+        assertFalse(diagnostics.stream().anyMatch(d ->
+                d.getCode().equals(PbsSemanticsErrors.E_SEM_ASSIGN_TARGET_NOT_ASSIGNABLE.name())));
+        assertFalse(diagnostics.stream().anyMatch(d ->
+                d.getCode().equals(PbsSemanticsErrors.E_SEM_ASSIGN_TYPE_MISMATCH.name())));
+    }
+
     @Test
     void shouldRejectUnresolvedImmutableAndTypeMismatchedAssignments() {
         final var source = """
diff --git a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/services/PBSFrontendPhaseServiceTest.java b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/services/PBSFrontendPhaseServiceTest.java
index 411c9f75..6cf98622 100644
--- a/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/services/PBSFrontendPhaseServiceTest.java
+++ b/prometeu-compiler/frontends/prometeu-frontend-pbs/src/test/java/p/studio/compiler/services/PBSFrontendPhaseServiceTest.java
@@ -381,16 +381,18 @@ class PBSFrontendPhaseServiceTest {
                 .filter(function -> irBackend.getEntryPointCallableName().equals(function.callableName()))
                 .findFirst()
                 .orElseThrow();
-        assertEquals(9, wrapper.instructions().size());
+        assertEquals(11, wrapper.instructions().size());
         assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.GET_GLOBAL, wrapper.instructions().get(0).kind());
-        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.JMP_IF_TRUE, wrapper.instructions().get(1).kind());
-        assertTrue(wrapper.instructions().get(2).calleeCallableName().startsWith("__pbs.module_init$m"));
-        assertTrue(wrapper.instructions().get(3).calleeCallableName().startsWith("__pbs.project_init$m"));
-        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.PUSH_BOOL, wrapper.instructions().get(4).kind());
-        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.SET_GLOBAL, wrapper.instructions().get(5).kind());
-        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.LABEL, wrapper.instructions().get(6).kind());
-        assertEquals("frame", wrapper.instructions().get(7).calleeCallableName());
-        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.RET, wrapper.instructions().get(8).kind());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.PUSH_BOOL, wrapper.instructions().get(1).kind());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.EQ, wrapper.instructions().get(2).kind());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.JMP_IF_TRUE, wrapper.instructions().get(3).kind());
+        assertTrue(wrapper.instructions().get(4).calleeCallableName().startsWith("__pbs.module_init$m"));
+        assertTrue(wrapper.instructions().get(5).calleeCallableName().startsWith("__pbs.project_init$m"));
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.PUSH_BOOL, wrapper.instructions().get(6).kind());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.SET_GLOBAL, wrapper.instructions().get(7).kind());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.LABEL, wrapper.instructions().get(8).kind());
+        assertEquals("frame", wrapper.instructions().get(9).calleeCallableName());
+        assertEquals(p.studio.compiler.models.IRBackendExecutableFunction.InstructionKind.RET, wrapper.instructions().get(10).kind());
     }
 
     @Test
diff --git a/prometeu-compiler/prometeu-build-pipeline/src/test/java/p/studio/compiler/backend/irvm/LowerToIRVMServiceTest.java b/prometeu-compiler/prometeu-build-pipeline/src/test/java/p/studio/compiler/backend/irvm/LowerToIRVMServiceTest.java
index cae2b32a..bcfef43f 100644
--- a/prometeu-compiler/prometeu-build-pipeline/src/test/java/p/studio/compiler/backend/irvm/LowerToIRVMServiceTest.java
+++ b/prometeu-compiler/prometeu-build-pipeline/src/test/java/p/studio/compiler/backend/irvm/LowerToIRVMServiceTest.java
@@ -87,6 +87,8 @@ class LowerToIRVMServiceTest {
                         fn("frame", "app", 20, ReadOnlyList.from(ret())),
                         fn("__pbs.frame_wrapper$m0", "app", 40, ReadOnlyList.from(
                                 getGlobal(0),
+                                pushBool(true),
+                                eq(),
                                 jmpIfTrue("bootstrap_done"),
                                 callFunc("app", "__pbs.module_init$m0", 31),
                                 callFunc("app", "__pbs.project_init$m0", 32),
@@ -101,13 +103,15 @@ class LowerToIRVMServiceTest {
 
         assertEquals("__pbs.frame_wrapper$m0", lowered.module().functions().get(0).name());
         assertEquals(IRVMOp.GET_GLOBAL, lowered.module().functions().get(0).instructions().get(0).op());
-        assertEquals(IRVMOp.JMP_IF_TRUE, lowered.module().functions().get(0).instructions().get(1).op());
-        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(2).op());
-        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(3).op());
-        assertEquals(IRVMOp.PUSH_BOOL, lowered.module().functions().get(0).instructions().get(4).op());
-        assertEquals(IRVMOp.SET_GLOBAL, lowered.module().functions().get(0).instructions().get(5).op());
-        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(6).op());
-        assertEquals(IRVMOp.RET, lowered.module().functions().get(0).instructions().get(7).op());
+        assertEquals(IRVMOp.PUSH_BOOL, lowered.module().functions().get(0).instructions().get(1).op());
+        assertEquals(IRVMOp.EQ, lowered.module().functions().get(0).instructions().get(2).op());
+        assertEquals(IRVMOp.JMP_IF_TRUE, lowered.module().functions().get(0).instructions().get(3).op());
+        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(4).op());
+        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(5).op());
+        assertEquals(IRVMOp.PUSH_BOOL, lowered.module().functions().get(0).instructions().get(6).op());
+        assertEquals(IRVMOp.SET_GLOBAL, lowered.module().functions().get(0).instructions().get(7).op());
+        assertEquals(IRVMOp.CALL, lowered.module().functions().get(0).instructions().get(8).op());
+        assertEquals(IRVMOp.RET, lowered.module().functions().get(0).instructions().get(9).op());
         assertEquals(IRVMOp.RET, lowered.module().functions().stream()
                 .filter(function -> "frame".equals(function.name()))
                 .findFirst()
@@ -645,4 +649,14 @@ class LowerToIRVMServiceTest {
                 null,
                 Span.none());
     }
+
+    private static IRBackendExecutableFunction.Instruction eq() {
+        return new IRBackendExecutableFunction.Instruction(
+                IRBackendExecutableFunction.InstructionKind.EQ,
+                "",
+                null,
+                null,
+                null,
+                Span.none());
+    }
 }
diff --git a/test-projects/main/assets/.prometeu/cache.json b/test-projects/main/assets/.prometeu/cache.json
index 228347b0..ea9a28f6 100644
--- a/test-projects/main/assets/.prometeu/cache.json
+++ b/test-projects/main/assets/.prometeu/cache.json
@@ -7,7 +7,7 @@
       "relative_path" : "confirm.png",
       "mime_type" : "image/png",
       "size" : 137,
-      "last_modified" : 1773571367191,
+      "last_modified" : 1774359768919,
       "fingerprint" : "aa7d241deabcebe29a6096e14eaf16fdc06cf06380c11a507620b00fc7bff094",
       "metadata" : { },
       "diagnostics" : [ {
@@ -21,7 +21,7 @@
       "relative_path" : "right-palette copy 10.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772403,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -39,7 +39,7 @@
       "relative_path" : "right-palette copy 11.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772405,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -57,7 +57,7 @@
       "relative_path" : "right-palette copy 12.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772406,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -75,7 +75,7 @@
       "relative_path" : "right-palette copy 13.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772408,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -93,7 +93,7 @@
       "relative_path" : "right-palette copy 14.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772409,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -111,7 +111,7 @@
       "relative_path" : "right-palette copy 15.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772411,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -129,7 +129,7 @@
       "relative_path" : "right-palette copy 16.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772412,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -147,7 +147,7 @@
       "relative_path" : "right-palette copy 17.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772413,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -165,7 +165,7 @@
       "relative_path" : "right-palette copy 18.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772415,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -183,7 +183,7 @@
       "relative_path" : "right-palette copy 19.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772416,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -201,7 +201,7 @@
       "relative_path" : "right-palette copy 2.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772417,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -219,7 +219,7 @@
       "relative_path" : "right-palette copy 20.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772418,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -237,7 +237,7 @@
       "relative_path" : "right-palette copy 21.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772420,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -255,7 +255,7 @@
       "relative_path" : "right-palette copy 22.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772421,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -273,7 +273,7 @@
       "relative_path" : "right-palette copy 23.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772423,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -291,7 +291,7 @@
       "relative_path" : "right-palette copy 24.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772424,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -309,7 +309,7 @@
       "relative_path" : "right-palette copy 25.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772425,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -327,7 +327,7 @@
       "relative_path" : "right-palette copy 26.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772426,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -345,7 +345,7 @@
       "relative_path" : "right-palette copy 27.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772428,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -363,7 +363,7 @@
       "relative_path" : "right-palette copy 28.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772429,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -381,7 +381,7 @@
       "relative_path" : "right-palette copy 29.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772430,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -399,7 +399,7 @@
       "relative_path" : "right-palette copy 3.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772431,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -417,7 +417,7 @@
       "relative_path" : "right-palette copy 30.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772432,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -435,7 +435,7 @@
       "relative_path" : "right-palette copy 31.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772433,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -453,7 +453,7 @@
       "relative_path" : "right-palette copy 32.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772435,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -471,7 +471,7 @@
       "relative_path" : "right-palette copy 33.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772436,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -489,7 +489,7 @@
       "relative_path" : "right-palette copy 34.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772437,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -507,7 +507,7 @@
       "relative_path" : "right-palette copy 35.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772438,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -525,7 +525,7 @@
       "relative_path" : "right-palette copy 36.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772439,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -543,7 +543,7 @@
       "relative_path" : "right-palette copy 37.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772441,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -561,7 +561,7 @@
       "relative_path" : "right-palette copy 38.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772442,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -579,7 +579,7 @@
       "relative_path" : "right-palette copy 39.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772443,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -597,7 +597,7 @@
       "relative_path" : "right-palette copy 4.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772444,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -615,7 +615,7 @@
       "relative_path" : "right-palette copy 40.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772445,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -633,7 +633,7 @@
       "relative_path" : "right-palette copy 41.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772448,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -651,7 +651,7 @@
       "relative_path" : "right-palette copy 42.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772449,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -669,7 +669,7 @@
       "relative_path" : "right-palette copy 43.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772450,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -687,7 +687,7 @@
       "relative_path" : "right-palette copy 44.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772452,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -705,7 +705,7 @@
       "relative_path" : "right-palette copy 45.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772453,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -723,7 +723,7 @@
       "relative_path" : "right-palette copy 46.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772454,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -741,7 +741,7 @@
       "relative_path" : "right-palette copy 47.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772455,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -759,7 +759,7 @@
       "relative_path" : "right-palette copy 48.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772456,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -777,7 +777,7 @@
       "relative_path" : "right-palette copy 49.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772458,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -795,7 +795,7 @@
       "relative_path" : "right-palette copy 5.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772459,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -813,7 +813,7 @@
       "relative_path" : "right-palette copy 50.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772460,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -831,7 +831,7 @@
       "relative_path" : "right-palette copy 51.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772461,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -849,7 +849,7 @@
       "relative_path" : "right-palette copy 52.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772463,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -867,7 +867,7 @@
       "relative_path" : "right-palette copy 53.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772464,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -885,7 +885,7 @@
       "relative_path" : "right-palette copy 54.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772465,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -903,7 +903,7 @@
       "relative_path" : "right-palette copy 55.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772467,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -921,7 +921,7 @@
       "relative_path" : "right-palette copy 56.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772468,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -939,7 +939,7 @@
       "relative_path" : "right-palette copy 57.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772470,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -957,7 +957,7 @@
       "relative_path" : "right-palette copy 58.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772474,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -975,7 +975,7 @@
       "relative_path" : "right-palette copy 59.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772476,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -993,7 +993,7 @@
       "relative_path" : "right-palette copy 6.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772478,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1011,7 +1011,7 @@
       "relative_path" : "right-palette copy 60.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772479,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1029,7 +1029,7 @@
       "relative_path" : "right-palette copy 61.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772481,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1047,7 +1047,7 @@
       "relative_path" : "right-palette copy 62.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772482,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1065,7 +1065,7 @@
       "relative_path" : "right-palette copy 63.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772483,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1083,7 +1083,7 @@
       "relative_path" : "right-palette copy 64.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772484,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1101,7 +1101,7 @@
       "relative_path" : "right-palette copy 65.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772485,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1119,7 +1119,7 @@
       "relative_path" : "right-palette copy 66.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772487,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1137,7 +1137,7 @@
       "relative_path" : "right-palette copy 67.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772488,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1155,7 +1155,7 @@
       "relative_path" : "right-palette copy 68.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772489,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1173,7 +1173,7 @@
       "relative_path" : "right-palette copy 69.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772491,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1191,7 +1191,7 @@
       "relative_path" : "right-palette copy 7.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772492,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1209,7 +1209,7 @@
       "relative_path" : "right-palette copy 8.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772493,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1227,7 +1227,7 @@
       "relative_path" : "right-palette copy 9.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772494,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1245,7 +1245,7 @@
       "relative_path" : "right-palette copy.png",
       "mime_type" : "image/png",
       "size" : 172,
-      "last_modified" : 1773913054715,
+      "last_modified" : 1774359772495,
       "fingerprint" : "eeb7cc665386299403b7be1c272375d5077f3647c587f8033aa8c9275f840562",
       "metadata" : {
         "tile" : {
@@ -1263,7 +1263,7 @@
       "relative_path" : "right-palette.png",
       "mime_type" : "image/png",
       "size" : 327,
-      "last_modified" : 1773932799598,
+      "last_modified" : 1774359773932,
       "fingerprint" : "0526996900bdeef23c72fe987fb45800f11895946dcd5f0f7f8390c879069a37",
       "metadata" : {
         "tile" : {
@@ -1281,7 +1281,7 @@
       "relative_path" : "wrong-palette.png",
       "mime_type" : "image/png",
       "size" : 248,
-      "last_modified" : 1773911050482,
+      "last_modified" : 1774359771814,
       "fingerprint" : "15850f68547775866b01a0fe0b0012bb0243dec303ce1f9c3e02220e05b593e6",
       "metadata" : { },
       "diagnostics" : [ {
@@ -1311,7 +1311,7 @@
       "relative_path" : "confirm.png",
       "mime_type" : "image/png",
       "size" : 137,
-      "last_modified" : 1773253076764,
+      "last_modified" : 1774359768918,
       "fingerprint" : "aa7d241deabcebe29a6096e14eaf16fdc06cf06380c11a507620b00fc7bff094",
       "metadata" : {
         "tile" : {
@@ -1341,7 +1341,7 @@
       "relative_path" : "flag00.png",
       "mime_type" : "image/png",
       "size" : 507,
-      "last_modified" : 1774025407014,
+      "last_modified" : 1774359777378,
       "fingerprint" : "6ca635a7906067b6a2a8460a8562718c445783e6df18b9f2c80c83c5ac569db6",
       "metadata" : {
         "tile" : {
@@ -1365,7 +1365,7 @@
       "relative_path" : "flag01.png",
       "mime_type" : "image/png",
       "size" : 766,
-      "last_modified" : 1774025460662,
+      "last_modified" : 1774359777379,
       "fingerprint" : "79257d8437747a68e9e8eb8f43fced7aa55940dc8eca98f95767994abbacdd81",
       "metadata" : { },
       "diagnostics" : [ {
@@ -1379,7 +1379,7 @@
       "relative_path" : "flag02.png",
       "mime_type" : "image/png",
       "size" : 684,
-      "last_modified" : 1774025485085,
+      "last_modified" : 1774359777379,
       "fingerprint" : "5fd43c447cf6dd9b164458860239427d2f4544ff6e007814731b50c17ffe75bf",
       "metadata" : { },
       "diagnostics" : [ {
@@ -1393,7 +1393,7 @@
       "relative_path" : "flag03.png",
       "mime_type" : "image/png",
       "size" : 669,
-      "last_modified" : 1774025730144,
+      "last_modified" : 1774359777380,
       "fingerprint" : "7feab8c868bb446afd3dd7250e70504fb0ca228f463650d2dd7c525144e0b321",
       "metadata" : {
         "tile" : {
@@ -1411,7 +1411,7 @@
       "relative_path" : "link00.png",
       "mime_type" : "image/png",
       "size" : 497,
-      "last_modified" : 1774024641031,
+      "last_modified" : 1774359777381,
       "fingerprint" : "c363f3ef7f32d9b249c7dc8babdb3eb5aae68c524099e5e97290202b054dda71",
       "metadata" : {
         "tile" : {
@@ -1429,7 +1429,7 @@
       "relative_path" : "link01.png",
       "mime_type" : "image/png",
       "size" : 500,
-      "last_modified" : 1774024641031,
+      "last_modified" : 1774359777382,
       "fingerprint" : "e2130efbb9643b41a4fb62619f2713402f9622c7db040fe18d929609ef70b89a",
       "metadata" : {
         "tile" : {
@@ -1447,7 +1447,7 @@
       "relative_path" : "link02.png",
       "mime_type" : "image/png",
       "size" : 517,
-      "last_modified" : 1774024641031,
+      "last_modified" : 1774359777383,
       "fingerprint" : "9216dfc6a6226fac398e9f781550d23fbfaa65bd377cdda69187149beca114ec",
       "metadata" : {
         "tile" : {
@@ -1465,7 +1465,7 @@
       "relative_path" : "link03.png",
       "mime_type" : "image/png",
       "size" : 507,
-      "last_modified" : 1774024641031,
+      "last_modified" : 1774359777383,
       "fingerprint" : "ebc4b7ca7bb1455288681c5d71424f60f658a44cb343d0c3934329cec676c867",
       "metadata" : {
         "tile" : {
@@ -1483,7 +1483,7 @@
       "relative_path" : "link04.png",
       "mime_type" : "image/png",
       "size" : 497,
-      "last_modified" : 1774024641031,
+      "last_modified" : 1774359777384,
       "fingerprint" : "c363f3ef7f32d9b249c7dc8babdb3eb5aae68c524099e5e97290202b054dda71",
       "metadata" : {
         "tile" : {
@@ -1501,7 +1501,7 @@
       "relative_path" : "link05.png",
       "mime_type" : "image/png",
       "size" : 495,
-      "last_modified" : 1774024641032,
+      "last_modified" : 1774359777384,
       "fingerprint" : "1ba8ce75c445396334737143e0cfa56c87a1fb64cca8ad0962192594849249eb",
       "metadata" : {
         "tile" : {
@@ -1519,7 +1519,7 @@
       "relative_path" : "link06.png",
       "mime_type" : "image/png",
       "size" : 518,
-      "last_modified" : 1774024641032,
+      "last_modified" : 1774359777385,
       "fingerprint" : "5e0954447699c6d5eac7550f1a10cf520efcddad0b9fbd9a716434da9d9550d4",
       "metadata" : {
         "tile" : {
@@ -1537,7 +1537,7 @@
       "relative_path" : "link07.png",
       "mime_type" : "image/png",
       "size" : 517,
-      "last_modified" : 1774024641032,
+      "last_modified" : 1774359777385,
       "fingerprint" : "6104ba7f216a937994d478ed07766ec28f48ad72fdd6620508535a1f877b8ddb",
       "metadata" : {
         "tile" : {
@@ -1555,7 +1555,7 @@
       "relative_path" : "t1381s1.png",
       "mime_type" : "image/png",
       "size" : 4970,
-      "last_modified" : 1774023262790,
+      "last_modified" : 1774359777386,
       "fingerprint" : "c8b667527b32436ab97fd57b3215917f7065d6d1b7f6d71be1827351bdc61fa6",
       "metadata" : { },
       "diagnostics" : [ {
@@ -1569,7 +1569,7 @@
       "relative_path" : "t1489s1.png",
       "mime_type" : "image/png",
       "size" : 6489,
-      "last_modified" : 1774023316667,
+      "last_modified" : 1774359777387,
       "fingerprint" : "678c6f48c6d1fcd1209c9d0ab1c46f20eea4871946135263b7363488cceb74f0",
       "metadata" : { },
       "diagnostics" : [ {
diff --git a/test-projects/main/cartridge/program.pbx b/test-projects/main/cartridge/program.pbx
index 438842ce..7ad9ccf9 100644
Binary files a/test-projects/main/cartridge/program.pbx and b/test-projects/main/cartridge/program.pbx differ
diff --git a/test-projects/main/src/main.pbs b/test-projects/main/src/main.pbs
index 9e53bacc..f22c4558 100644
--- a/test-projects/main/src/main.pbs
+++ b/test-projects/main/src/main.pbs
@@ -4,20 +4,27 @@ import { Log } from @sdk:log;
 import { Input } from @sdk:input;
 import { Gfx } from @sdk:gfx;
 
+declare global frame_counter: int = 0;
+declare global tile_id: int = 0;
+declare const MAX_FRAMES: int = 4;
+
 [Frame]
 fn frame() -> void
 {
     let touch = Input.touch();
-    let tile_id = 0;
-    let hold = 0;
-    let counter = 0;
+
+    if (touch.button().released())
+    {
+        frame_counter = 0;
+        tile_id = 0;
+    }
 
     if (touch.button().down())
     {
-        hold = touch.button().hold() / 6;
-        while (counter < hold)
+        frame_counter = frame_counter + 1;
+        if (frame_counter > MAX_FRAMES)
         {
-            counter = counter + 1;
+            frame_counter = 0;
             tile_id = tile_id + 1;
             if (tile_id > 7)
             {