Cool little shooter—it somehow reminds me of Terminator (back in the Game Boy days). Things I’d improve or noticed: I think you always have at most two more bullets than enemies spawn. Waves with the same number of bullets as enemies would be cool—this would make the player focus more on the core mechanic (precision). Different hitboxes and a score system that maybe scales with the speed of spawned enemies would also be nice. And lastly, endless waves :) that would make the game a perfect time killer for me. Cool entry!