Hi!
This game is really fun and the sounds and particles are really satisfying. The music gets annoying pretty quickly tho.
I like the enemy variety, but maybe make a few tutorial rooms in the beginning that introduce you to the different enemy types, because i e.g. had no idea what the green things are.
The gameplay is fun, but not really outstanding. A little twist on the common concept would have been great.
Other than that, fun game. I hope my feedback helped you and it would be really cool if you could check out my submission too. Thanks! :)