Beautiful little platformer, the controls feel quite good overall, although I found the hitboxes on the spikes to be much too big, and I would have preferred not to have to restart the level each time you hit them.
More importantly, the dice don't really feel like they have anything to do with the game itself - you just have a predetermined 1-6 tries to beat each level.
Fairly minor concerns for a little game jam game though, great work!