玩法
Drag left and right (or arrow keys) to move. Your ship fires automatically. Destroy every alien before they reach you; dodge their shots. Three lives.
关于
Free Space Invaders-style online – play full screen in your browser, no sign-up, no ads. Shoot down the alien waves.
分数和设置只保存在此浏览器（本地存储）中，不会发送到服务器。
游戏加载过一次后，没有网络也能玩。