Hello, I have played your game and found it fun. I have a few comments to make your game more fun. I have brought up the fps to 60. This makes the game more fun, though you should bring the number of enemies down if you make the fps 60. You should add a menu so that when you die, you can start again from within the game rather than running the Python file from the terminal. You also have a problem with collisions with enemies. I think you should make the collisions with the pygame pygame.sprite.collide_circle function to make It more player friendly. With these few changes, you could make the game a lot more fun.