is an arcade game by Namco, originally released in 1983 and distributed in the United States by Bally Midway. Running on the Namco Super Pac-Man hardware modified to support horizontal scrolling, the game features a mouse protagonist and cat antagonists, similar to Hanna-Barbera's Tom and Jerry cartoon series. The name "Mappy" is likely derived from , a slightly pejorative Japanese slang term for policeman. The game has been re-released in several Namco arcade compilations. It spawned a handful of sequels and a 2013 animated web series developed by cartoonists Scott Kurtz and Kris Straub. Gameplay The player guides Mappy the police mouse through the mansion of the cats called Meowkies (Mewkies in Japan) to retrieve stolen goods, such as the Mona Lisa or a TV. The player uses a left-right joystick to move Mappy and a single button to operate doors. The mansion has six floors of hallways (four or five in some other versions) in which the stolen items are stashed. Mappy and the cats move between floors by bouncing on trampolines at various places in the house. Both Mappy and the cats can land on a floor on the way up, but not on the way down. When Mappy passes cats in the air, he is unharmed, but if he touches a cat he will lose a life. The trampolines break when Mappy bounces on them four times in a row, and the trampolines change color depending on how many times Mappy has used them without a rest. In addition to the Meowkies, the boss cat Goro (Nyamco in Japanese) also roams around. He is faster but less aggressive than the Meowkies. Throughout the levels, Goro hides behind the different recoverable items. If Mappy recovers an item which Goro is hiding behind, the player receives 1000 points in addition to the score for the item. Items come in pairs; retrieving the second item in a pair immediately after the first multiplies the point value of the second item (x2, up to x6). Doors only open towards their doorknobs. Hitting a cat with a door scores 50 points and stuns the cat. Meowkies and Goro can open doors but will get stunned unless the door opens away from them (doorknobs away), and they can walk through opened doors. They cannot open blue doors. Blue doors, when opened, blast a slow moving microwave in the direction of the doorknob that