Wow, absolutely one of my favorites so far in this jam! Very addicting game loop, every upgrade felt meaningful and I used them quite regularly, especially the stomp move. The boss fight with Satan at the end was awesome and felt properly balanced as a heavy hitter and damage sponge. I remember I also had the idea to do something with the nine circles of hell but couldn't think of a way to make it fit, but I'm glad you got a great idea out of it. Fantastic job!