You are running in the jungle, you need to jump and to make sprints. If you fall, your are food for lions. Run fast. jump fast, you are in the jungle, the music of this game is very energetic. Just use Z to jump and X to sprint. If you press double Z you will double jump.
This is the perfect the for sitting and relax, when you want not to think in anything, music should helps you to get well disposed.