Great game, I think I managed to beat it? Kind of, the center cube turned white then the game froze. Anyway, solid premise for an incremental game, I agree with the comment below, it has lots of potential for a successful mobile game. It's weakest points at the moment are audio and UI, the block breaking sound is one of the most important, try to make it as satisfying as you can. Some of the fonts need better contrast, perhaps a dark outline. Another suggestion, in order to make it a "true" idle game, there could be a checkbox on the upgrades screen that automatically plays the breaking scene (you could gate this feature behind an upgrade as well).
Best of luck with development!