This is a really good puzzle game, and I would see this working as an actual game. the one problem I had was that the difficulty when beginning is unreasonably hard. I would suggest a difficulty system so that the game gets harder as it goes on, and so you can learn the mechanics more easily and skillfully. Though, I would guess a scaling difficulty is probably missing because of time constraints.
Still, a really good job on this one!
If you wanna check out my game: