Donkey Kong '94 is one name for a Puzzle Platformer released on Nintendo's Game Boy handheld in 1994. The game is essentially an Updated Rerelease of the original 1981 arcade game. The exact same Excuse Plot is used here -- Donkey Kong has kidnapped Pauline, and Mario must chase him down. The game even opens with the same four levels of the original. But after the fourth level is beaten, the arcade ending begins, and is immediately subverted when DK comes to and takes Pauline back. What follows is 97 levels of lock and key puzzles spread across 9 worlds. Several game mechanics are in play: