Aw man, first my initial thought was going to be that this is going to go places! You had so much potential to create rooms filled with rows of spikes and figuring out which hearts to push across them but you didn't go that route. Me sad :( If you had more than four levels and more puzzles to go with this game I would have given it a higher creativity score, but I guess you just ran out of time.
The movement controls are a little clunky and maybe the game could have benefitted from a kick button to kick the hearts across the room.