Cool little game! Congrats on finishing the jam!
I love the art style you have here. It's a little cartoony and has a lot of character. The core premise of randomly generating terrain and the weirdness of a huge hand and dice being summoned in a dungeon is great.
While the randomness of the platforms can be a little frustrating, you give players a way to reroll for better options. Unfortunately, the whole process of rolling is incredibly slow. If a player isn't actively doing something in your game, you want them to either be thinking about how to solve your game's challenge or.... or you're an idle game. Your game would feel a lot better if the whole dice rolling process took less than 10% of the time it does now. Just a quick swing by the bell and new platforms appear.
The dice roll filling in the random shape in a dungeon is a cool idea. I'd love to see it explored more. It makes me want to think up other ways to use it, too. That's the sign of a good idea.
Well done. Keep making games!