![Supper Mario Broth on Twitter: "The GameCube Service Disc, used by Nintendo representatives to test and diagnose problems with GameCube systems, contains two images of Mario in its files: a regular render Supper Mario Broth on Twitter: "The GameCube Service Disc, used by Nintendo representatives to test and diagnose problems with GameCube systems, contains two images of Mario in its files: a regular render](https://pbs.twimg.com/media/Fmcb3e6WIAEPg_p.jpg)
Supper Mario Broth on Twitter: "The GameCube Service Disc, used by Nintendo representatives to test and diagnose problems with GameCube systems, contains two images of Mario in its files: a regular render
![Forest of Illusion on Twitter: "We've preserved a total of five Unit Inspection/Aging discs for the Nintendo GameCube! The purpose of these discs was to test and diagnose various functions on systems Forest of Illusion on Twitter: "We've preserved a total of five Unit Inspection/Aging discs for the Nintendo GameCube! The purpose of these discs was to test and diagnose various functions on systems](https://pbs.twimg.com/media/FZ9Wd_rUUAUKUNK.jpg:large)
Forest of Illusion on Twitter: "We've preserved a total of five Unit Inspection/Aging discs for the Nintendo GameCube! The purpose of these discs was to test and diagnose various functions on systems
![BBC Radio 4 - Front Row, Antony Sher on Willy Loman, Patrick Gale, National Videogame Arcade, National Videogame Arcade - Gamecube test kit from 'A History of Games in 100 Objects' BBC Radio 4 - Front Row, Antony Sher on Willy Loman, Patrick Gale, National Videogame Arcade, National Videogame Arcade - Gamecube test kit from 'A History of Games in 100 Objects'](https://ichef.bbci.co.uk/images/ic/320x180_b/p02mt28q.jpg)