BRAINRUSH

Starting June 20th, check out BrainRush, part of Cartoon Network's new "CNreal" live-programming lineup -- a gameshow where you have to answer trivia while riding a rollercoaster.

The catch? You don't know you're on the gameshow until you've boarded the coaster. They slap an earpiece on you and off you go -- hence this poor teen's hilarious, terror-filled responses.

(via Theme Park Insider)