The game was really really fun, the shooting and movement felt really good and I enjoyed playing it.
I would really appreciate more checkpoints or a way to heal, right now if I made a mistake at the start of the level my health is gone which feels really punishing. sometimes when enemies get close you can not shoot them, this is especially annoying with the tiny enemies. Also you can add even more juice - particles, screen shake.
The game is actually amazingly fun, good job to all of you.