An interesting concept, definitely with a lot of potential since it relies so much on physics which leads to a lot of crazy ways to solve the puzzles which is always great in my opinion. Plus the mechanic could have some extra chances for additions and such as more characters to control etc..
I can definitely say it's a really nice base for a game that I'd be very interested to see how much farther it could go. If there were more levels I would definitely play them because there's definitely a lot of weird ways to solve some of this stuff with such a limited but also open moveset.