I really like the concept of this game. Being able to change any side to any thing makes for rather interesting gameplay and strategy. I can easily see this expanded upon as a quick mobile game where one can grind out a few puzzles in between obligations. It reminds me of the block flipping game (whatever that's called), where it is very simple but easy to learn and can be expanded upon into practically infinite levels.
Unfortunately, three faces is simply too few. I managed to get through quite a few of the levels with a die that was just six rock faces because I never lost enough life to papers that the weakness mattered. I think this would be a lot better with five faces in the style of something like Rock, Paper, Scissors, Lizard, Spock. That way I couldn't just tank through levels. Making same face matches hurt or lowering the amount of health given might also fix the issue.
The only other issue I had was that I found it difficult to tell what I was doing to my die. Maybe I was just missing something, but I felt it would be nice to be able to pan around my die in full 3D so I could really understand where the faces would land when I moved.
I liked the graphics and music as well. I see you didn't make much of that, so I don't want to focus on them too much, but they did give a pleasant puzzle game vibe that I could easily see fitting in with other puzzle games, many of which likely had a lot more than 48 hours put into them.
I honestly think that's the best way to describe what I think. While I do think there are issues, if I saw this game for .99 on the Play Store I wouldn't question it at all. It plays well, it's easy to learn, and it can easily be expanded into something more competitive with leaderboards and such. What more could one want?