wasd:移动 e:自动开火 鼠标左键:手动开火 空格:切换准星 ↑+↓:作弊模式 ←:关闭作弊模式 wasd:move e:auto fire left click:fire space:switch display ↑+↓:machine gun mode ←:shut down machine gun mode
thx https://scratch.mit.edu/projects/236670917/
