Really good game! The visuals are amazing as everyone else has already said, i really love the cartoon artstyle on display here, and the lighting was well implemented. The name is clever too.
The gameplay is great as well. The jump feels solid and fluid, and the head swap mechanic is cool as well (Though i think it would have been simpler to have both heads on one button). I especially liked the jump at the end where you had to use both heads to progress. The only thing i found lackluster was that the monster is a bit slow and provides very little threat if you just keep going forward at a reasonable pace.