The style of your game is very cool, the pixelated effect is quite interesting and is reminiscent of older consoles and games. The difficulty didn’t seem to increase that much, so it didn’t feel very challenging after a while, so maybe increasing the rate at which enemies fire or how many projectiles they fire might help. While I like the idea of managing cooldowns, I think they were slightly too long in this case, 3 seconds between attacks is a long time, but I overall I quite liked it, good job!