The original Geist was a first person adventure developed by N-Space and published by Nintendo in 2005 for their GameCube. In the game you play as the spirit of the dead protagonist, who can interact with the physical world through possession of things, animals and human beings. The game had an interesting gameplay mechanic in which you had to scare NPCs before being able to possess them and many clever puzzles revolving around your possession ability.
A Nintendo DS port / sequel was in development at N-Space in mid – late ‘00s, but in the end the project was canned, possibly because of low sales and mixed reviews for the GameCube version. As we can read on Wikipedia:
“Nearing the end of development, a Nintendo DS port was rumored by an IGN tour to be in development. Although this port was never announced, and no information of it has ever been officially released, n-Space did have development kits for the DS at the time, and traces of the ports existence have been found within the ROM of the DS version of Call of Duty 4: Modern Warfare, which was developed by n-Space, as two text documents for the credits of Geist DS are present”
You can read the Geist DS credits hidden in CoD4 DS at TCRF.
While the game was never officially announced and it was quietly cancelled with no media ever shown to the public, fans of the original game found some early footage of Geist DS, preserved below to remember its existence.
N-Space did a great job with their portable FPS (Call of Duty, GoldenEye), so it’s safe to say we missed another good one with the cancellation of Geist DS. We hope one day someone could share online a playable prototype, maybe along with their DS version of Halo.