Very cool game, had fun playing through it. I like the pixel art and how you can juggle the dice in the air with jump attacks. I'm not sure if the effects that the dice does are related to what it rolls. If so, it would be nice to have it indicated more clearly (with eg. a number/image next to the effect text).
The working leaderboeards are a cool addition and it made me want to play it again to improve my score. So I tried betting it as fast as possible but then I got a much lower score, which is confusing.