I like the concept and the music is nicely chosen for a puzzle game, though it did run out and didn't loop before I finished the game. I didn't finish the game, because unfortunately failure of one level means restarting the entire game over which, after three attempts, became too frustrating. It's simple, neat, and has plenty room to grow, but that consequence of failure is too harsh.

I thought this was a nice little puzzle jamgame. I think you could take this in a lot of directions and be building on a good foundation. Your last level starts down that vein of 'planning' what your next character will do, the time limit is tight enough that it discourages the 'just put a clone on every switch' strategy, and encourages moving your character from switch to switch.

Like Tom says, the game feels like it's wanting for something. I imagine games with these kind of time travel duplicates, ones which remain behind, have been made before - you could try and grab a couple of mechanics from them to mix up the formula more.

As a Jam submission, though, I'd say you did a pretty good job! The content that was there was pleasant and held my interest! Thanks for taking part!