diff --git a/src/samples/boop/commands.ts b/src/samples/boop/commands.ts
index df87090..383aa1c 100644
--- a/src/samples/boop/commands.ts
+++ b/src/samples/boop/commands.ts
@@ -134,15 +134,13 @@ async function checkGraduates(game: BoopGame){
     }
 
     game.produce(state => {
-        // 预先收集所有可用的猫（在盒子里的）
         for(const partId of toUpgrade){
             const part = state.pieces[partId];
             const [row, col] = part.position;
             const player = part.player;
             moveToRegion(part, state.regions.board, null);
 
-            // 使用下一个可用的猫
-            const newPart = findPartInRegion(state, '', 'kitten', player);
+            const newPart = findPartInRegion(state, '', 'cat', player);
             moveToRegion(newPart || part, null, state.regions[player], [row, col]);
         }
     });