射出去的每一发子弹，都会回来。
五章完整流程，浏览器即玩。Every shot you fire comes home.
All five chapters, in your browser.

进度保存在此浏览器，登录后自动与云端合并 · 首次加载约 50 MB
建议使用电脑、鼠标与键盘 · 也支持手柄Progress is saved in this browser and merged with the cloud when signed in · First load ≈ 50 MB
Best with a mouse and keyboard · gamepads work too