diff --git a/apps/client/src/scenes/lobby/LobbyScene.tsx b/apps/client/src/scenes/lobby/LobbyScene.tsx
index 6653788..dc3338f 100644
--- a/apps/client/src/scenes/lobby/LobbyScene.tsx
+++ b/apps/client/src/scenes/lobby/LobbyScene.tsx
@@ -8,28 +8,83 @@
 
 export const LobbyScene = ({ room, myId, onStart }: Props) => {
   // ルーム情報到着前ローディング表示
-  if (!room) return <div style={{ color: "white", padding: 40 }}>読み込み中...</div>;
+  if (!room)
+    return <div style={{ color: "white", padding: 40 }}>読み込み中...</div>;
 
   // 自身オーナー権限判定
   const isMeOwner = room.ownerId === myId;
 
   // ロビー画面本体
   return (
-    <div style={{ padding: 40, color: "white", background: "#222", height: "100vh", display: "flex", flexDirection: "column", alignItems: "center" }}>
-      <h2 style={{ fontSize: "2rem", marginBottom: "20px" }}>ルーム: {room.roomId} (待機中)</h2>
-      
-      <div style={{ margin: "20px 0", background: "#333", padding: "20px", borderRadius: "8px", width: "400px" }}>
-        <h3 style={{ borderBottom: "1px solid #555", paddingBottom: "10px" }}>
+    <div
+      style={{
+        padding: 40,
+        color: "white",
+        background: "#222",
+        height: "100vh",
+        display: "flex",
+        flexDirection: "column",
+        alignItems: "center",
+      }}
+    >
+      <h2 style={{ fontSize: "2rem", marginBottom: "20px" }}>
+        ルーム: {room.roomId} (待機中)
+      </h2>
+
+      <div
+        style={{
+          margin: "20px 0",
+          background: "#333",
+          padding: "20px",
+          borderRadius: "8px",
+          width: "400px",
+        }}
+      >
+        <h3
+          style={{
+            borderBottom: "1px solid #555",
+            paddingBottom: "10px",
+            margin: "0 0 10px 0",
+          }}
+        >
           参加プレイヤー ({room.players.length}/{room.maxPlayers})
         </h3>
-        <ul style={{ listStyle: "none", padding: 0, fontSize: "1.2rem" }}>
+
+        {/* 🌟 変更部分: ulタグにスクロール設定を追加 */}
+        <ul
+          style={{
+            listStyle: "none",
+            padding: 0,
+            margin: 0,
+            fontSize: "1.2rem",
+            maxHeight:
+              "300px" /* 🌟 リストの最大の高さを指定（これを超えるとスクロールになる） */,
+            overflowY: "auto" /* 🌟 縦方向のスクロールを有効化 */,
+            paddingRight:
+              "10px" /* 🌟 スクロールバーと文字が被らないように右側に少し余白を確保 */,
+          }}
+        >
           {/* 参加プレイヤー一覧描画 */}
           {room.players.map((p: roomTypes.RoomMember) => (
-            <li key={p.id} style={{ margin: "15px 0", display: "flex", alignItems: "center", gap: "10px" }}>
+            <li
+              key={p.id}
+              style={{
+                margin: "15px 0",
+                display: "flex",
+                alignItems: "center",
+                gap: "10px",
+              }}
+            >
               <span>{p.id === myId ? "🟢" : "⚪"}</span>
-              <span style={{ fontWeight: p.id === myId ? "bold" : "normal" }}>{p.name}</span>
+              <span style={{ fontWeight: p.id === myId ? "bold" : "normal" }}>
+                {p.name}
+              </span>
               {p.isOwner && <span style={{ fontSize: "0.9em" }}>👑</span>}
-              {p.isReady && <span style={{ marginLeft: "auto", fontSize: "0.9em" }}>✅</span>}
+              {p.isReady && (
+                <span style={{ marginLeft: "auto", fontSize: "0.9em" }}>
+                  ✅
+                </span>
+              )}
             </li>
           ))}
         </ul>
@@ -40,14 +95,33 @@
         {isMeOwner ? (
           <button
             onClick={onStart}
-            style={{ padding: "15px 40px", fontSize: "1.2rem", background: "#ef4444", color: "white", border: "none", borderRadius: "5px", cursor: "pointer", fontWeight: "bold" }}
+            style={{
+              padding: "15px 40px",
+              fontSize: "1.5rem",
+              cursor: "pointer",
+              backgroundColor: "#4ade80",
+              color: "#111",
+              border: "none",
+              borderRadius: "8px",
+              fontWeight: "bold",
+            }}
           >
             ゲームスタート
           </button>
         ) : (
-          <p style={{ color: "#aaa", fontSize: "1.2rem" }}>オーナーがゲームを開始するのを待っています...</p>
+          <div
+            style={{
+              padding: "15px 40px",
+              fontSize: "1.5rem",
+              backgroundColor: "#555",
+              color: "#ccc",
+              borderRadius: "8px",
+            }}
+          >
+            ホストの開始を待っています...
+          </div>
         )}
       </div>
     </div>
   );
-};
\ No newline at end of file
+};
diff --git a/test/load-bot.constants.ts b/test/load-bot.constants.ts
index 61fae65..3f08f20 100644
--- a/test/load-bot.constants.ts
+++ b/test/load-bot.constants.ts
@@ -13,7 +13,7 @@
 export const START_DELAY_MS = 800;
 export const MAX_X = GAME_CONFIG.GRID_COLS;
 export const MAX_Y = GAME_CONFIG.GRID_ROWS;
-export const ROOM_ID = "1";
+export const ROOM_ID = "02";
 export const START_GAME = true;
 export const SOCKET_PATH = NETWORK_CONFIG.SOCKET_IO_PATH;
 export const SOCKET_TRANSPORTS = [...NETWORK_CONFIG.SOCKET_TRANSPORTS];