Great little roguelike, and we love roguelikes here too!
The animations and the upgrade mechanics were nice, was looking forward to more of it. Only piece of feedback would be that a little sound goes a long way to game feel, so once you come back to it it'll feel much richer with some small sfx.
I made a roguelike deckbuilder for our jam game, and would love your feedback if you wanted to try it out too!