Try the new AI-powered Infinite Story.

Arena

You find a nearby tree and climb it, reaching for branches and pulling yourself up until you are a few dozen feet above the ground.

The engine roar growls louder as it's source draws nearer. You begin to feel the tree shake a little with reverberation. You keep your eyes trained in the direction of the noise and soon spot a skinny blonde guy riding a motor-bike and wearing thick goggles. He speeds along, apparantly unaware of your presence. It won't be long before he reaches the round beneath your tree.