The game imagery consists mostly of static or animated photographs, though live-action clips are scattered throughout.

The two later investigate a mansion that's believed to be linked to the drug's creation and to Imabikisō after some of their classmates in university begin to die after taking Vision.

A playable demo featuring three stories and the official trailer was released on the Japanese PlayStation Store on October 15, 2007.

[citation needed] Additional contents were also made available on the PlayStation Store, these were two extra free of charge chapters.

[2] Both the demo and the actual game are playable on the PlayStation Portable handheld console through Remote Play.