Really cool concept. I can see the potential in what it could become.
The game felt like a series of tutorials for some grand puzzle game and I appreciate that.
In the time you had you showed all the mechanics that are availible and boy there was a lot of mechanics.
Its hard to come up with a lot of advanced puzzles in short ammount of time so it feels like a demo for a sortoff puzzle editor. Which I think is a big accomplishment.
Polish graphics. Make the movement more precise(essential for a puzzle game). Ad some music/sounds and I think its a perfect setup to make a really interesting puzzlegame