In Extreme Escape, you are Junpei; one of the nine people trapped onboard a luxurious cruise liner dragged into playing a game set up by the mysterious ringleader “Zero.” Each person on the ship is given a bangle with a number written on it that can only open the door with the same number written on it. If you can get all the way to door 9, then you’re clear. However, if you don’t uphold the rules –- namely that you can only partner with 3-5 people per group at a time -– the bombs inside your bodies will explode.
This is the basic premise for Extreme Escape! 9 Hours 9 People 9 Doors. The game is a suspense/adventure game from Chunsoft, who are reportedly proud of the difficulty of the game. The game is actually split into two segments.
The first is the Escape Part. Here, you explore the rooms and use the DS touchscreen to examine everything in the room -– anything that could give you a hint on how to escape from the locked room. As you discover new things, the people with you will also give their input and provide you with more hints. Sometimes, you can also find usable items, which can be combined with other items for various purposes. Once you solve all the mysteries in the room, it is possible to unlock the door and escape.
The second is the Novel Part, where you can relax (but only just) and talk to other characters. Sometimes, the conversations have nothing to do with the puzzles, but at other times their words can be very important to the story. At the end of the novel part, you get to choose the next numbered door to go through and continue.
The game has an official spoiler-free blog at Chunsoft’s website, and there is also a demo available on the Nintendo Channel in Japan.