At first the movement speed seemed too fast but I slowly got used to it as I played. I loved the hearts jumping in the air after defeating an enemy and the rainbow aspect to them on screen and in the UI. Being able to use the LMB and RMB to throw was also really nice. For the cubes, since they had a collision tied to them, I saw a couple times the AI would end up pushing a cube while chasing it causing them to be stuck in the cycle unless I picked up the cube they were chasing. A nice touch to spice up gameplay would be some powerups, different terrain ( multi level / heights ), or different types of cubes to throw. Overall the game was enjoyable and I was able to reach the end of the 3rd level. Good Job!