Having the standard turn-based-4-direction-puzzle WASD and Z-undo and R-restart would be greatly appreciated
All the "ready, start", fade to white, text, restart etc take way too long before the cube is responsive again. Make them faster and make pressing buttons skip them instantly. This wouldn't be that important if there was an undo button, but I'm constantly restarting and watching fade to white, fade in, ready, start.
Limiting steps is kind of a lame way to turn something into a puzzle, but thats just like, my opinion man