Wow, while I was very confused at first as soon as I got it this game's simple rules created a lot of interesting strategy! The graphics are really appealing too.
Some criticisms I have though are that the music can get a little grating pretty quickly. It looks like you guys didn't create the music, so I would encourage maybe looking for a longer track? Or perhaps a less intense one. It also is a little strange how getting hit by the skeletons can actually be a good thing as removing tiles simplifies the puzzle a good bit and honestly I think the way to get a high score is to keep the tiles relatively small. Maybe should make getting hit a little more harsh or having lots of tiles (where the complex and actually quite fun and interesting gameplay takes place) more rewarding. My last criticism is I feel like the theme for "roll of the dice" is represented but not terribly well. The D6 in the game just adds tiles (doesn't really feel like rolling) and the D4 feels more like hitting "next level" than it does like its rerolling everything.
Other than that I thought this was a really elegant design! Could totally be expanded