A fun little game, very simple but very effective.
The game has some problems though, the physics being very slippery isn't a problem until you get to levels where you need to be a little bit more precise with your movement. The conveyor belts are also glitched i think, every time the bottom magnet touched a conveyor belt I couldn't interact with it at all wich was a little frustrating.
Otherwise the concept is simple but well put together, nice work :)