Very very interesting concept!
I feel like this is the type of game idea that very easily could become a full game. Super high potential for acceleration ramps, attracting other objects, 3-heads magnets, bridge building, movement in fluids, working with rotations, etc...
Sadly, the game itself is a bit empty right now, no sound effects nor musics, no pause menu, backgrounds are all the same... but I still enjoyed the game thanks to its originality and concept even if very hard to control, that's how you know it has great potential.
Also beware, we can VERY easily get inside of the walls!
Come back to this idea in a few years, this can 100% get some prize for most creative puzzle if done correctly.
You're on the good track!
Congrats on finishing the Jam and good luck for next time!