diff --git a/apps/client/src/scenes/game/GameInputManager.ts b/apps/client/src/scenes/game/GameInputManager.ts
new file mode 100644
index 0000000..abf6670
--- /dev/null
+++ b/apps/client/src/scenes/game/GameInputManager.ts
@@ -0,0 +1,18 @@
+/**
+ * GameInputManager
+ * ゲーム側へ入力を集約して橋渡しする
+ */
+import { GameManager } from "./GameManager";
+
+/** ジョイスティック入力をゲーム管理へ橋渡しするマネージャー */
+export class GameInputManager {
+  private gameManager: GameManager;
+
+  constructor(gameManager: GameManager) {
+    this.gameManager = gameManager;
+  }
+
+  public handleJoystickInput = (x: number, y: number) => {
+    this.gameManager.setJoystickInput(x, y);
+  };
+}
diff --git a/apps/client/src/scenes/game/GameScene.tsx b/apps/client/src/scenes/game/GameScene.tsx
index 6dce426..96b9d84 100644
--- a/apps/client/src/scenes/game/GameScene.tsx
+++ b/apps/client/src/scenes/game/GameScene.tsx
@@ -1,4 +1,10 @@
-import { useEffect, useRef, useState } from "react";
+/**
+ * GameScene
+ * メインゲーム画面の表示とライフサイクルを管理する
+ * GameManagerの初期化と入力配線を行う
+ */
+import { useCallback, useEffect, useRef, useState } from "react";
+import { GameInputManager } from "./GameInputManager";
 import { GameManager } from "./GameManager";
 import { GameView } from "./GameView";
 import { config } from "@repo/shared";
@@ -15,6 +21,7 @@
 export function GameScene({ myId }: GameSceneProps) {
   const pixiContainerRef = useRef<HTMLDivElement>(null);
   const gameManagerRef = useRef<GameManager | null>(null);
+  const inputManagerRef = useRef<GameInputManager | null>(null);
 
   // gameConfig から初期表示時間文字列を生成する関数
   const getInitialTimeDisplay = () => {
@@ -36,6 +43,7 @@
     
     // 参照を保持（入力を渡すため）
     gameManagerRef.current = manager;
+    inputManagerRef.current = new GameInputManager(manager);
 
     // 描画用のタイマーループ (100msごとに更新して滑らかにする)
     const timerInterval = setInterval(() => {
@@ -49,17 +57,20 @@
     // コンポーネント破棄時のクリーンアップ
     return () => {
       manager.destroy();
+      inputManagerRef.current = null;
       clearInterval(timerInterval); // クリーンアップ
     };
   }, [myId]);
 
+  const handleInput = useCallback((x: number, y: number) => {
+    inputManagerRef.current?.handleJoystickInput(x, y);
+  }, []);
+
   return (
     <GameView
       timeLeft={timeLeft}
       pixiContainerRef={pixiContainerRef}
-      onInput={(x, y) => {
-        gameManagerRef.current?.setJoystickInput(x, y);
-      }}
+      onJoystickInput={handleInput}
     />
   );
 }
\ No newline at end of file
diff --git a/apps/client/src/scenes/game/GameView.tsx b/apps/client/src/scenes/game/GameView.tsx
index 7aa33b6..f31fea2 100644
--- a/apps/client/src/scenes/game/GameView.tsx
+++ b/apps/client/src/scenes/game/GameView.tsx
@@ -9,11 +9,11 @@
 type Props = {
   timeLeft: string;
   pixiContainerRef: React.RefObject<HTMLDivElement>;
-  onInput: (x: number, y: number) => void;
+  onJoystickInput: (x: number, y: number) => void;
 };
 
 /** 画面描画と入力UIをまとめて描画する */
-export const GameView = ({ timeLeft, pixiContainerRef, onInput }: Props) => {
+export const GameView = ({ timeLeft, pixiContainerRef, onJoystickInput }: Props) => {
   return (
     <div
       style={{
@@ -51,7 +51,7 @@
 
       {/* UI 配置領域 */}
       <div style={{ position: "absolute", zIndex: 20, width: "100%", height: "100%" }}>
-        <JoystickInputLayer onInput={onInput} />
+        <JoystickInputLayer onInput={onJoystickInput} />
       </div>
     </div>
   );