Definitely a good start. Some variety in basic enemies, the addition of puzzles on each floor, and a couple things like that would significantly improve the basic gameplay loop. But those are things that take time, and often get cut for a game jam due to limited time.
The default window size was too large for my 1920x1080 screen resolution, spilling off the top/bottom of the screen, and fullscreening it caused it to stretch funny, but fit on the screen.
Also the game froze on me partway through a second attempt and I have no idea why.

This was so fun!! I really enjoyed learning the boss's movements, and the roll mechanic is really smooth and nice to use. I was also so pleasantly surprised to find other enemies past the ghost level. 

Hey there! Congrats for your entry!

I find the physicality of the game really pleasant, it could have been even better with sounds! However, I feel like hitboxes are not very easy to understand, and the first weapon range is quite short.  It could be nice to work on monster's shapes and give more range to the player in order to make your game even more enjoyable.

Nice job anyway!

I like your upgrade system, very roguelite!