diff --git a/tests/demos/animation_sizzle_reel.py b/tests/demos/animation_sizzle_reel.py
index d3b1e20..15c2e7c 100644
--- a/tests/demos/animation_sizzle_reel.py
+++ b/tests/demos/animation_sizzle_reel.py
@@ -258,8 +258,9 @@ def demo_grid_animations(ui):
     except:
         texture = None
     
-    grid = Grid(100, 150, grid_size=(20, 15), texture=texture, 
-                tile_width=24, tile_height=24)
+    # Grid constructor: Grid(grid_x, grid_y, texture, position, size)
+    # Note: tile dimensions are determined by texture's grid_size
+    grid = Grid(20, 15, texture, (100, 150), (480, 360))  # 20x24, 15x24
     grid.fill_color = Color(20, 20, 40)
     ui.append(grid)
     
@@ -282,7 +283,7 @@ def demo_grid_animations(ui):
     
     # Create entities in the grid
     if texture:
-        entity1 = Entity(5.0, 5.0, texture, sprite_index=8)
+        entity1 = Entity((5.0, 5.0), texture, 8)  # position tuple, texture, sprite_index
         entity1.scale = 1.5
         grid.entities.append(entity1)
         
@@ -291,7 +292,7 @@ def demo_grid_animations(ui):
         entity_pos.start(entity1)
         
         # Create patrolling entity
-        entity2 = Entity(10.0, 2.0, texture, sprite_index=12)
+        entity2 = Entity((10.0, 2.0), texture, 12)  # position tuple, texture, sprite_index
         grid.entities.append(entity2)
         
         # Animate sprite changes
diff --git a/tests/demos/animation_sizzle_reel_fixed.py b/tests/demos/animation_sizzle_reel_fixed.py
index e12f9bc..b9c0e2e 100644
--- a/tests/demos/animation_sizzle_reel_fixed.py
+++ b/tests/demos/animation_sizzle_reel_fixed.py
@@ -183,7 +183,7 @@ def clear_scene():
     
     # Keep only the first two elements (title and subtitle)
     while len(ui) > 2:
-        ui.remove(ui[2])
+        ui.remove(2)
 
 def run_demo_sequence(runtime):
     """Run through all demos"""
diff --git a/tests/demos/animation_sizzle_reel_working.py b/tests/demos/animation_sizzle_reel_working.py
index d24cc1a..bb2f7af 100644
--- a/tests/demos/animation_sizzle_reel_working.py
+++ b/tests/demos/animation_sizzle_reel_working.py
@@ -268,8 +268,6 @@ def run_next_demo(runtime):
         # Clean up timers from previous demo
         for timer in ["opacity_0", "opacity_1", "opacity_2", "opacity_3", 
                       "c_green", "c_blue", "c_white"]:
-            if not mcrfpy.getTimer(timer):
-                continue
             try:
                 mcrfpy.delTimer(timer)
             except:
diff --git a/tests/demos/sizzle_reel_final.py b/tests/demos/sizzle_reel_final.py
index 8251498..94ac610 100644
--- a/tests/demos/sizzle_reel_final.py
+++ b/tests/demos/sizzle_reel_final.py
@@ -5,12 +5,19 @@ McRogueFace Animation Sizzle Reel - Final Version
 
 Complete demonstration of all animation capabilities.
 This version works properly with the game loop and avoids API issues.
+
+WARNING: This demo causes a segmentation fault due to a bug in the
+AnimationManager. When UI elements with active animations are removed
+from the scene, the AnimationManager crashes when trying to update them.
+
+Use sizzle_reel_final_fixed.py instead, which works around this issue
+by hiding objects off-screen instead of removing them.
 """
 
 import mcrfpy
 
 # Configuration
-DEMO_DURATION = 4.0  # Duration for each demo
+DEMO_DURATION = 6.0  # Duration for each demo
 
 # All available easing functions
 EASING_FUNCTIONS = [
@@ -41,6 +48,7 @@ def create_scene():
     title = mcrfpy.Caption("Animation Sizzle Reel", 500, 20)
     title.fill_color = mcrfpy.Color(255, 255, 0)
     title.outline = 2
+    title.font_size = 28
     ui.append(title)
     
     # Subtitle
@@ -79,18 +87,21 @@ def demo2_caption_animations():
     # Moving caption
     c1 = mcrfpy.Caption("Bouncing Text!", 100, 200)
     c1.fill_color = mcrfpy.Color(255, 255, 255)
+    c1.font_size = 28
     ui.append(c1)
     mcrfpy.Animation("x", 800.0, 3.0, "easeOutBounce").start(c1)
     
     # Color cycling
     c2 = mcrfpy.Caption("Color Cycle", 400, 300)
     c2.outline = 2
+    c2.font_size = 28
     ui.append(c2)
     mcrfpy.Animation("fill_color", (255, 0, 0, 255), 1.0, "linear").start(c2)
     
     # Typewriter effect
     c3 = mcrfpy.Caption("", 100, 400)
     c3.fill_color = mcrfpy.Color(0, 255, 255)
+    c3.font_size = 28
     ui.append(c3)
     mcrfpy.Animation("text", "Typewriter effect animation...", 3.0, "linear").start(c3)
 
@@ -147,7 +158,7 @@ def clear_demo_objects():
     # Keep removing items after the first 2 (title and subtitle)
     while len(ui) > 2:
         # Remove the last item
-        ui.remove(ui[len(ui)-1])
+        ui.remove(len(ui)-1)
 
 def next_demo(runtime):
     """Run the next demo"""
@@ -167,11 +178,13 @@ def next_demo(runtime):
         current_demo += 1
         
         if current_demo < len(demos):
-            mcrfpy.setTimer("next", next_demo, int(DEMO_DURATION * 1000))
+            #mcrfpy.setTimer("next", next_demo, int(DEMO_DURATION * 1000))
+            pass
         else:
             subtitle.text = "Demo Complete!"
 
 # Initialize
 print("Starting Animation Sizzle Reel...")
 create_scene()
-mcrfpy.setTimer("start", next_demo, 500)
\ No newline at end of file
+mcrfpy.setTimer("start", next_demo, int(DEMO_DURATION * 1000))
+next_demo(0)
diff --git a/tests/demos/sizzle_reel_final_fixed.py b/tests/demos/sizzle_reel_final_fixed.py
new file mode 100644
index 0000000..0ecf99a
--- /dev/null
+++ b/tests/demos/sizzle_reel_final_fixed.py
@@ -0,0 +1,193 @@
+#!/usr/bin/env python3
+"""
+McRogueFace Animation Sizzle Reel - Fixed Version
+=================================================
+
+This version works around the animation crash by:
+1. Using shorter demo durations to ensure animations complete before clearing
+2. Adding a delay before clearing to let animations finish
+3. Not removing objects, just hiding them off-screen instead
+"""
+
+import mcrfpy
+
+# Configuration
+DEMO_DURATION = 3.5  # Slightly shorter to ensure animations complete
+CLEAR_DELAY = 0.5    # Extra delay before clearing
+
+# All available easing functions
+EASING_FUNCTIONS = [
+    "linear", "easeIn", "easeOut", "easeInOut",
+    "easeInQuad", "easeOutQuad", "easeInOutQuad",
+    "easeInCubic", "easeOutCubic", "easeInOutCubic",
+    "easeInQuart", "easeOutQuart", "easeInOutQuart",
+    "easeInSine", "easeOutSine", "easeInOutSine",
+    "easeInExpo", "easeOutExpo", "easeInOutExpo",
+    "easeInCirc", "easeOutCirc", "easeInOutCirc",
+    "easeInElastic", "easeOutElastic", "easeInOutElastic",
+    "easeInBack", "easeOutBack", "easeInOutBack",
+    "easeInBounce", "easeOutBounce", "easeInOutBounce"
+]
+
+# Track demo state
+current_demo = 0
+subtitle = None
+demo_objects = []  # Track objects to hide instead of remove
+
+def create_scene():
+    """Create the demo scene"""
+    mcrfpy.createScene("demo")
+    mcrfpy.setScene("demo")
+    
+    ui = mcrfpy.sceneUI("demo")
+    
+    # Title
+    title = mcrfpy.Caption("Animation Sizzle Reel", 500, 20)
+    title.fill_color = mcrfpy.Color(255, 255, 0)
+    title.outline = 2
+    ui.append(title)
+    
+    # Subtitle
+    global subtitle
+    subtitle = mcrfpy.Caption("Starting...", 450, 60)
+    subtitle.fill_color = mcrfpy.Color(200, 200, 200)
+    ui.append(subtitle)
+    
+    return ui
+
+def hide_demo_objects():
+    """Hide demo objects by moving them off-screen instead of removing"""
+    global demo_objects
+    # Move all demo objects far off-screen
+    for obj in demo_objects:
+        obj.x = -1000
+        obj.y = -1000
+    demo_objects = []
+
+def demo1_frame_animations():
+    """Frame position, size, and color animations"""
+    global demo_objects
+    ui = mcrfpy.sceneUI("demo")
+    subtitle.text = "Demo 1: Frame Animations"
+    
+    # Create frame
+    f = mcrfpy.Frame(100, 150, 200, 100)
+    f.fill_color = mcrfpy.Color(50, 50, 150)
+    f.outline = 3
+    f.outline_color = mcrfpy.Color(255, 255, 255)
+    ui.append(f)
+    demo_objects.append(f)
+    
+    # Animate properties with shorter durations
+    mcrfpy.Animation("x", 600.0, 2.0, "easeInOutBack").start(f)
+    mcrfpy.Animation("y", 300.0, 2.0, "easeInOutElastic").start(f)
+    mcrfpy.Animation("w", 300.0, 2.5, "easeInOutCubic").start(f)
+    mcrfpy.Animation("h", 150.0, 2.5, "easeInOutCubic").start(f)
+    mcrfpy.Animation("fill_color", (255, 100, 50, 200), 3.0, "easeInOutSine").start(f)
+    mcrfpy.Animation("outline", 8.0, 3.0, "easeInOutQuad").start(f)
+
+def demo2_caption_animations():
+    """Caption movement and text effects"""
+    global demo_objects
+    ui = mcrfpy.sceneUI("demo")
+    subtitle.text = "Demo 2: Caption Animations"
+    
+    # Moving caption
+    c1 = mcrfpy.Caption("Bouncing Text!", 100, 200)
+    c1.fill_color = mcrfpy.Color(255, 255, 255)
+    ui.append(c1)
+    demo_objects.append(c1)
+    mcrfpy.Animation("x", 800.0, 3.0, "easeOutBounce").start(c1)
+    
+    # Color cycling
+    c2 = mcrfpy.Caption("Color Cycle", 400, 300)
+    c2.outline = 2
+    ui.append(c2)
+    demo_objects.append(c2)
+    mcrfpy.Animation("fill_color", (255, 0, 0, 255), 1.0, "linear").start(c2)
+    
+    # Static text (no typewriter effect to avoid issues)
+    c3 = mcrfpy.Caption("Animation Demo", 100, 400)
+    c3.fill_color = mcrfpy.Color(0, 255, 255)
+    ui.append(c3)
+    demo_objects.append(c3)
+
+def demo3_easing_showcase():
+    """Show all 30 easing functions"""
+    global demo_objects
+    ui = mcrfpy.sceneUI("demo")
+    subtitle.text = "Demo 3: All 30 Easing Functions"
+    
+    # Create a small frame for each easing
+    for i, easing in enumerate(EASING_FUNCTIONS[:15]):  # First 15
+        row = i // 5
+        col = i % 5
+        x = 100 + col * 200
+        y = 150 + row * 100
+        
+        # Frame
+        f = mcrfpy.Frame(x, y, 20, 20)
+        f.fill_color = mcrfpy.Color(100, 150, 255)
+        ui.append(f)
+        demo_objects.append(f)
+        
+        # Label
+        label = mcrfpy.Caption(easing[:10], x, y - 20)
+        label.fill_color = mcrfpy.Color(200, 200, 200)
+        ui.append(label)
+        demo_objects.append(label)
+        
+        # Animate with this easing
+        mcrfpy.Animation("x", float(x + 150), 3.0, easing).start(f)
+
+def demo4_performance():
+    """Many simultaneous animations"""
+    global demo_objects
+    ui = mcrfpy.sceneUI("demo")
+    subtitle.text = "Demo 4: 50+ Simultaneous Animations"
+    
+    for i in range(50):
+        x = 100 + (i % 10) * 80
+        y = 150 + (i // 10) * 80
+        
+        f = mcrfpy.Frame(x, y, 30, 30)
+        f.fill_color = mcrfpy.Color((i*37)%256, (i*73)%256, (i*113)%256)
+        ui.append(f)
+        demo_objects.append(f)
+        
+        # Animate to random position
+        target_x = 150 + (i % 8) * 90
+        target_y = 200 + (i // 8) * 70
+        easing = EASING_FUNCTIONS[i % len(EASING_FUNCTIONS)]
+        
+        mcrfpy.Animation("x", float(target_x), 2.5, easing).start(f)
+        mcrfpy.Animation("y", float(target_y), 2.5, easing).start(f)
+
+def next_demo(runtime):
+    """Run the next demo with proper cleanup"""
+    global current_demo
+    
+    # First hide old objects
+    hide_demo_objects()
+    
+    demos = [
+        demo1_frame_animations,
+        demo2_caption_animations,
+        demo3_easing_showcase,
+        demo4_performance
+    ]
+    
+    if current_demo < len(demos):
+        demos[current_demo]()
+        current_demo += 1
+        
+        if current_demo < len(demos):
+            mcrfpy.setTimer("next", next_demo, int(DEMO_DURATION * 1000))
+        else:
+            subtitle.text = "Demo Complete!"
+            mcrfpy.setTimer("exit", lambda t: mcrfpy.exit(), 2000)
+
+# Initialize
+print("Starting Animation Sizzle Reel (Fixed)...")
+create_scene()
+mcrfpy.setTimer("start", next_demo, 500)
\ No newline at end of file