Marvin, Martin's rival, enjoys the extreme, saying that he enjoys the adrenaline rush that comes with such activities. Some of his activities includes rock climbing in the Himalayas, parasailing over the Great Barrier Reef, street-luging on the German Autobahn, jungle kayaking, and snowboarding down the face of K2. He does virtually everything that Martin himself can do, but better, and even dresses similarly. His father is a pilot, explaining Marvin's ability to travel around the world frequently. Marin is intelligent and smart and, apparently, more cerebral than Martin.