NBC kicked off an amazing Red Nose Day with Celebrity Ninja Warrior, where celebs from all your favorite shows and movies ran the obstacle courses (sometimes cheating along the way) to raise money for charity. Where other celebs had to crawl and fib their way past the more advanced stunts, Amell ran through them with ease -- even the dreaded Flywheels, which felled Dancing with the Stars' Derek Hough, could not defeat the Green Arrow.