UNRELEASED GAME – VAPORWARE
This game is stuck in the development limbo known as Vaporware. Few to no details have been released about its gameplay, plot, or release date since its announcement many years ago. It may or may not be in active development, but neither has it been cancelled officially.
Stage Debut was designed similarly to a game titled Mario Artist: Talent Studio developed for the Nintendo 64's Nintendo 64DD peripheral. The player would take a picture of their face using the Game Boy Advance's Game Eye peripheral (which was planned to be, in short, a spiritual successor to the Game Boy Camera). Then, by linking the GameEye to the Gamecube system via the Nintendo GameCube Game Boy Advance Cable, the player would be able to insert the image onto a 3D model within the game's virtual world.
Stage Debut was widely assumed as either a canceled project or a project in development hell after no progress in development was announced on the title by Nintendo for quite some time. In a 2008 interview with IGN, Nintendo's Shigeru Miyamoto said that Stage Debut was an inspiration for the Wii's Mii Channel function, he also said that "In my mind, it's still alive."
Source: Wikipedia, "[en.wikipedia.org/wiki/Stage_Debut Stage Debut]", available under the CC-BY-SA License.