Donkey Kong was a Nintendo game that appeared in video arcades in 1981. It introduced Mario, Donkey Kong and Peach. At the beginning of the game Donkey Kong steals Mario's girlfriend and takes her to the top of a steel structure. Mario has to go up on the girders, climb ladders, leap over tumbling barrels, dodge lethal fireballs, and jump onto fast-moving elevators to try to rescue his girlfriend.