Some guy on Neogaf got access to a debug menu on the Wii U | GBAtemp.net - The Independent Video Game Community
Contra Rebirth [Wii - Beta / Debug] - Unseen64
Debug menu | Nintendo | Fandom
Nintendo Denies Wii U "Accidental Hack" - The Escapist
Debug menu (SSBM) - SmashWiki, the Super Smash Bros. wiki
Nintendo Wii U network 'hacked' hours after launch? | ZDNET
GitHub - BullyWiiPlaza/UDP-Debug-Reader: This is a UDP debug logger for reading logs broadcasted by Wii U homebrew projects
Forest of Illusion on X: "There are early documents for Wii Sports Resort at E3 2008. In the debug menu options for Mario and Luigi can be seen, these are official Mario
Debug Mode #8: Nintendo Wii U - Podcast - YouTube
Wii U 'hacked' as console releases in US
Wii Sports Resort - The Cutting Room Floor
Debug Menu [Sonic Colors: Ultimate] [Mods]
Wii U user may have accidentally accessed debug mode, can reset other users' passwords (update) - Polygon
Wii U - Splatoon - Debug Textures - The Textures Resource
Menu Loader Wii - GameBrew
Wii U debug menu reveals something called 'Yoshi's Land Wii U' | VentureBeat
Wii U users accidentally access console's debug mode - GameSpot