I got stuck in the level where there's 2 keys for the first time for the longest while, because I thought I had to get both! I guess it's my bad for expecting both of them to be necessary :D
Overall a cool game, I like it when I have multiple dice to make a choice with. I would've appreciated an auto-roll feature, I'm not sure if it added much to have to press R every now and then. It would become a one-button game, and that's nice!