Created by Toshimitsu Takagi in 2004 and ported to the PlayStation Portable, Crimson Room is a collection of Room Escape games. In a small and ordinary-looking room, you are trapped. You must figure out how to leave from this room by finding, using, and combining items you find in this room. All you have to do to play is click the right places on the screen. Using the graphics, the sounds, and the responses as clues, you are to escape with your idea and inspiration. At the end of the game, an ending scene is presented.
This PlayStation Portable version of Crimson Room is actually a compilation pack that includes multiple rooms previously available in the Flash version of the game as well as a new Reverse scenario supervised by Mr. Takagi.