I enjoyed the gameplay, would have loved to see some more enemies on the screen, it felt like I was most times waiting for new enemies to spawn (Aside from one run where I was positively swarmed with enemies, which felt really good in contrast). I also encountered a bug where I was spawned into the arena without any weapons, which also happened on a room change, was an interesting experience of helplessness in a wavegame :D
With a bit more polish this game would have been really good! Nonetheless good job for delivering what is essentially a complete wave game with progression in the scope of the game jam!