Cool concept, but I didn't find a use for the "save moment" mechanic, as it was pretty easy to speed through the game only using the "time travel" mechanic and an occasional restart if I overshot the goal. It'd be nice to get a level that forces the player to use that function, because it seems like a waste otherwise. The instructions screen was also pretty small for me, although that might be because of my resolution. Lastly, it'd be nice if you made the music carry over between levels, because on my initial run through, I only got to hear a single full loop on the last level. Making your own music is always a cool thing, and I'd like to be able to hear it fully.