Nice game! I quite liked the concept of having the different gun types randomly at a press of a button.
I did find that sometimes changing weapon type mid run, id be swapped to a much weaker combo, basically ending a good run.
The pixelated look is nice but can maybe be dialed back a smidge. Its bit jarring on fullscreen.
Also creatures tend to creep up to you from behind and suddenly you are dead. Id say visually it can use some improvement in player feedback. So take damage, make me feel it.
The music is chill. and fits the kind of gameplay. SFX wise the bullet shots could have a bit more oomph to it but its not a deal breaker.
I think with more added variation
With a bit more variety in enemies i think this could be really addictive