Not bad for your first game 😀!
GAMEPLAY
Kind of a Dungeon shooter. Simple gameplay, but very good for a first game attempt. Controls are ok also. Not bad for your first game 💪.
GRAPHICS/ART
Nice pixel art style. Cheerful colored monsters. Maybe some more effects would have been a nice polish bonus.
AUDIO
Enjoyable track to listen to. Top you also added some sound effects to the guns, hits and pickups
THEME
Did not really cover the theme very well I think, but ok.
Overall a fun good first game. Keep up this good work💪!
PS: an extra tip would be to use ZIP or something like that. Not everyone knows how to extract RAR.