I really like the general look of the game. The basic puzzle mechanic is simple, easy to understand, and fun. The included levels were a bit easy, but worked well as a proof of concept for the idea. Music, SFX, and the ability to rotate the camera would all go a really long way in helping the game shine. It'd also be nice to see a bit clearer indication when blocks are going to disappear. Maybe make a more dramatic difference in appearance compared to other block or maybe you could inject some personality into your die and have little cartoon sweat particles come out when it lingers on one. I think you are on a good track here. With its current mechanics, it probably isn't suited for a very long game, but it seems promising as a short but sweet experience. And there is lots of room for expansion if you wanted to bring it farther than that, like different dice types or level gimmicks like blocks that rotate you.