Mario Club Co., Ltd.

The Super Mario Club is the game testing and debugging team for most Mario games, as well as other games for Nintendo, such as Pikmin 2, or Metroid Fusion. They are usually listed under "Special Thanks" under the credits of many Mario games, including New Super Mario Bros. and Super Mario 64

Credits

 * New Super Mario Bros., 2006
 * ''Wario World, 2002
 * Dr. Mario 64, 2001
 * Super Mario 64, 1996