The game is about an extremely tough guy who is trying to do something.
If you can figure it out, you will win the game.
Spoiler:
You only get one life. Throw it away!
Try to kill the main character as fast as possible to get highest score.
2013-12-22: I just want to make a fun game.
You may find some hints on the comment section posted by the others but I don't want to waste your time.
The spoiler below will show you exactly what to do :)
Spoiler #2:
He will die when he and his heart collide.
Click on
this photo if you still can't finish the game.
2013-12-22: Changed image of the clouds, the sky and the ground.