Holy crap i liked this! This is not my type of a game but there is something with the 2d and the snappy controls that got me invested. I played once first with a harder difficulty and i died immediately ofcourse but then i got better after i played for a while on the easier difficulty . It was so fun and satisfying to shoot the enemies.
I liked the SFX and the graphics are fitting with nice animations
This game has a good feel and keeps you motivated to play, that is a big plus!
I would like to have some more visible field in front of the player by adding just a little light with the opacity a bit lower where your crosshair is? but just a little to give "some" hint of what is infront of you without showing too much? It felt sometimes like the enemies just appear infront of you all of sudden, altough i know that this is intended to give the panic feel :)
Anyhoo, holy crap, alot of work has been odne in just 4 days, damn. Good job man! 5/5.