Cool idea but it’s buggy as hell. Currently there’s only 12 levels and then they start repeating. You get coins for finishing a level, but why? There’s nothing to do with them.
I uninstalled after rolling the cubes on level 14 (which was really just level 2 again) and the cubes disappeared into what was supposed be a solid base block which failed the level.
Fix the bugs, add more levels and maybe some skins and backgrounds to spend the coins on and you might have something.