Three kids dawning the different colors red, blue, and purple compete in relatively cool-looking games to achieve as many points as they can. At the end of every episode, they climb a big fake mountain, braving tumbling rocks made out of styrofoam, sparkling glitter, shooting steam, and loud sounds while trying to hit the "Actuators" along their way to the summit. The first place winner gets a "piece of the rock" which is a big green glowing thing, that is supposed to be from the mountain they just climbed. The mountain is called the "AggroCrag" and was later made into the "MegaCrag" for Global GUTS.
Did You Know?
Ways to be disqualified from the Crag event (and get an automatic 3rd place) included skipping obstacles like Boulder Canyon, crossing into another player's path or attempting to disrupt their progress, and hitting the final actuator without having hit one of the previous ones (the latter was the most common cause of disqualifications.) See more
Please do not try any of these events at home. That is, if you have a massive indoor ski slope in your living room!
Referenced in Nostalgia Critic: Snick