I loved it! It a great way to fit the theme! =D
At first, the controls feel a bit weird, but once you get used to them, it's a real pleasure to play through the levels.
There's a lot of cool tricks to do! They aren't apparent at first, then you discover them either by accident (dice rolling to cover big spikes gaps) or by thinking you broke the game (dice jump ^^), before you understand that it was the intended method all along right at the next level '^'
The only thing I would have changed would be that the side of the dice should represent the number left (5 -> 4 -> 3 -> 2 -> 1)
But apart from that detail, nothing bad to say about the mechanics!
The music is cool, I'm not sure if it goes well with the game, but I like it.
Great submission! =D