That was very clever. To make the dice move the ammount of dots there are. Although it made it very much harder for me. There were a few places where I had this eureka moment, when the dice has 5 on it but I can stop it sooner by hitting the wall. Awesome.
It's a shame there is no audio. it can make a world of a difference. For my game I used free assets for my audio and I remember the first time all of them were hooked in. It was a different game. much better.
But I get this might have been a time constraint not to add them. Anyways. Awesome job!