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.

There's a point you hit where the chests are moving so fast I gave up trying to follow it, haha. It was fun getting to that point. Stocking up on as many + extra heart chances along-side being able to re-roll without a cost (as far as I could tell) really let you make a broken build, which is fun for a small game like this. I am biasedly in favour of the theme as well haha.

If you did want to push balance a bit, I'd imagine adding an escalating cost to the re-rolls + forcing the player to open at least x% of chests (where x is say, 1/4 of the number of non-mimic chests, rounded down) might force players to be a little less "I'm going to re-roll until I have more hearts showing up then mimics" as I was. But like I said, the broken-ness was fun. 

All up, great work!

Really addicting small game. I ended up stacking so many perks that I became like an isekai protagonist and tanked all the mimic damage. I also stacked so many cursed coins that I kept getting like a billion coins per chest opened. Downside is that my coin count went into integer overflow and I went into the negatives. What a banger game. Would love to see more.

I really like the art, but I think the use of the theme is a bit basic, given the fact you know which chest to pick and the vendor does not lie. It becomes better the longer you go on, after you add more speed and chests, but I think the fact you can simply choose how many chests you can pick removes much of the risk reward. I think this type of game would fit better on a level-based system, but overall an enjoyable experience.

Was a bit bewildered to find a shell game, but I really like what you did with this. Very playful way to extend the original idea and amazing presentation.

Uprades were maybe too expensive and not impactful enough ? I felt like it took me a bit too long to get to the point where the game started becoming challenging.