Great submission!
Overall a great polished entry, with nice details like the sound effects in the shop for the not buyable items and a unique and consistent art style. As far as points of feedback:
It took me a bit to notice the < button for the shop.
Second point, I don't know if it was meant to be free to reroll, but with the fake-gold ring i rerolled alot to gain infinite money without playing a single round with mimics.
That's all I'd add... so overall I had a blast playing your submission.