The characters and music are super impressive and the concept of a dungeon rush is well executed, it keeps you on your toes!
All I'd say is that the pacing is slightly off towards the middle, once you've bought the first boss, all the other upgrades other than sharpen are out of your price range until you've made it through maybe 5 dungeons?
I'm glad there's still an element of danger to it though, these games are no fun if you can just romp through, amazing work!