Looking for thrills? I've never seen anything quite like the Buzzball, which looks to be both completely terrifying and amazingly exciting at the same time. Essentially, it's a big ball with a seat inside. You strap yourself to the seat and close the ball up. You can then control where it moves as you flip and spin all over the place.

Once the Buzzball is in motion the pod maintains an upright position until the pilot turns, causing the pod to rotate inside the ball against the direction of travel, which applies a braking force and the pod to lock with the ball. This causes the pod to rotate with the ball until the weight of the pilot and pod overcomes the inertia forces and causes the Buzzball to change direction.

Buzzball, via Didn't You Hear?