The game idea is really fun to play! The constant scaling down of your character really forces you to think twice about where you are moving rather than just focusing on shooting all of the enemies, making the game really engaging and intense even if there aren't too many things on the screen. I do think there are times where the bullets keep hitting an imaginary wall, and a score system could help with giving players a sense of progression, giving them a way to see how much they are improving at the game. But with that being said, I still enjoyed playing your game!