Cheatsy

Cheatsy is a member of the Koopalings.

Super Mario World

 * Gopher Bash
 * Rock TV
 * Yoshi's Shuffle

The Adventures of Super Mario Bros. 3

 * Sneaky Lying Cheating Giant Ninja Koopas
 * The Beauty of Kootie
 * Princess Toadstool for President
 * Never Koop a Koopa
 * Tag Team Trouble
 * Misadventure of Mighty Plumber
 * A Toadally Magical Adventure
 * Misadventures in Babysitting
 * Do the Koopa
 * Kootie Pie Rocks
 * 7 Continents for 7 Koopas
 * True Colors

Trivia:

 * He isn't cheater in the games. instead, he is sport-lover and aggressive.
 * Almost every episode of The Adventures of Super Mario Bros. 3, Cheatsy's head and/or muzzle become discolored.
 * His name in the games is Larry Koopa.