Really nice game! the difficulty is just right in my opinion, took me a several attempts to beat it.
Sprites are simple, but animations are on another level of smooth, I can almost feel the pain you went through drawing all those spritesheets lol
The artstyle is awesome, reminds me of a mix of Gameboy games, old Java phone games and The binding of Isaac of all things.
The story adds a really nice touch.
Overall, short but solid! Would defo play it if you made a full version
P.S. Just a small technical flaw I I experienced and would like to point out, on a PS controller, you can't aim horizontally, only vertically. This might be a problem with mine in particular, it's a bootleg usb dualshock 2, but it works fine everywhere else.