ONLY 1 SHOOTS is a 2d math-strategy, where you should repel attacks with your attention and counting skills.
divide et impera.
HOW TO PLAY:
Use [WASD] to move, [E] to interact with guns and math-blocks, [Q] to throw number away from your inventory.
ATTENTION:
When you interact with the adder you should know some "math" rules of it. if you put 2 and 3 inside it you get 5, but if you put 2 and 4 you get 1 (6-5), so sum just overflows to 1.