Really interesting concept, but it's quite hard to understand how the magnet system works, I feel like it wasn't too reliable or I wasn't using it the right way. Also, I would suggest next time explaining the controls at the beginning of the game or at least (something you can already do now) explain the controls on the game's page as people generally look there (I know there is a text file with the controls, but no one checks those files usually).
Other than that, congrats on your submission! :)