Nice game!
Pretty visuals, and the use of the sound is well-done. I'm not sure there's a "rolling" aspect of the die, as you just manually change the colors of the faces, but otherwise the mechanics are pretty cool and it feels really soothing to play. Solid controls. Nice level designs too, with the moving tiles coming in level 2 and the optional coin-collecting puzzles throughout. Also, it was easy to understand, and the instructions are simple and well-designed.
Great job!