Hay i've played a few runs,
I like the overall aesthetic direction and the cutesy slime style but there a some areas I think could use some polish
- some of the ui seems misaligned, I am playing on a 1440p monitor which may be the cause but bits of the ui were over lapping or sometimes I could see multiple of a button, it never stopped me doing anything but it did look odd
- the game seems a bit punishing at the moment, between the low health and not having enough ammo in a clip to kill a basic enemy it is hard, being able to hit multiple enemies at once could help balance it but the rooms are too small to really line them up, I would probably double player health and damage just to start
- I think you have left some debug stuff turned on, i pressed R and it seemed to restart my game ?
- it could use a bit more juice generally, more knock back on hits and sound effects for weak and strong hits ect
seems like you have a good foundation but needs some more work on the combat !