prototype of Congo

Hi, this is the first version of my game, what i want with this is feedbacks about the idea, if the idea is good or no. The idea of the game is that you can throw your own head to kill the enemys, it's simple but i liked and want to see if people like the idea too, the controls is:

Move: arrows or WASD

Jump: Space Bar

Throw the Head: K

 I hope you can help me with this, Thanks.