There are no movement keys. Your gun is your engine — every shot kicks you backwards.

Every shot drops a casing. The world holds a fixed number of bullets, forever — skate over your spent shells to reload. Difficulty decides how many.

Squares eat your casings. Pop one to get them all back. Green shields only break from behind. Pink bolts are not brass — dodge.

Empty mag? Your shells crawl home to you... slowly. Getting hit hurts, but the knockback is free travel.