Equipped with a suitcase and a flashlight, go in search of evidence and try to get out of this scary place. The game interface is divided into four zones: the main game screen in the upper left, the dialog in the bottom left, your inventory in the upper right and the plane of the room where you are in the bottom right. All is played with the mouse. Find out in a building infected by a strange virus in Twelve Doors, an adventure game type point and click to discover on your free online flash game website www.flash-games.net. Simply click on one element of decor to interact with him. The game completely in Japanese complicates the understanding of history but the different puzzles, the mysterious atmosphere and the graphics very band-designed make the game very interesting. You play a secret agent wearing a combination anti-radiation sent to inspect a contaminated building where strange things have occurred. Good luck and have fun!