diff --git a/packages/framework/src/ui/PhaserBridge.tsx b/packages/framework/src/ui/PhaserBridge.tsx
index 8132c42..a569ab4 100644
--- a/packages/framework/src/ui/PhaserBridge.tsx
+++ b/packages/framework/src/ui/PhaserBridge.tsx
@@ -49,9 +49,9 @@ export function PhaserGame(props: PhaserGameProps) {
         };
         const phaserGame = new Phaser.Game(config);
 
-        // 添加 FadeScene
+        // 添加 FadeScene 并启动它来初始化 overlay
         const fadeScene = new FadeSceneClass();
-        phaserGame.scene.add(FADE_SCENE_KEY, fadeScene, false);
+        phaserGame.scene.add(FADE_SCENE_KEY, fadeScene, true); // 改为 true 以触发 create
 
         // 创建 SceneController
         const currentScene = signal<string | null>(null);
diff --git a/packages/sample-game/src/scenes/MenuScene.ts b/packages/sample-game/src/scenes/MenuScene.ts
index 60c6f26..00a64b1 100644
--- a/packages/sample-game/src/scenes/MenuScene.ts
+++ b/packages/sample-game/src/scenes/MenuScene.ts
@@ -81,16 +81,16 @@ export class MenuScene extends ReactiveScene {
     const { button, colors } = MENU_CONFIG;
 
     this.startButtonBg = this.add.rectangle(
-      center.x,
-      center.y + MENU_CONFIG.positions.buttonY,
+      -button.width/2,
+      -button.height/2,
       button.width,
       button.height,
       colors.buttonBg
-    ).setInteractive({ useHandCursor: true });
+    ).setOrigin(0.5).setInteractive({ useHandCursor: true });
 
     this.startButtonText = this.add.text(
-      center.x,
-      center.y + MENU_CONFIG.positions.buttonY,
+      -button.width/2,
+      -button.height/2,
       'Start Game',
       {
         fontSize: MENU_CONFIG.fontSize.button,