Siren Cheats

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Brain Cell Revival Mini-Game

During Tamon Takeuchi's Day 3 03:00 level, a BrainCell Revival mini-game can be found in a child's grave when you switch over to Kyoya Suda. Successfully complete the level then save the game. An option to play a new puzzle game will now appears at the main menu.
Verified by: this cheat is unverified Submitted by: SunnyDelight on January 20, 2006

Hidden Movie

Complete the game w/ the 2nd ending & collect all 99 archive items to unlock the 100th item. Go to the Stage Select screen then move the cursor to the upper right corner, and start the movie.
Verified by: this cheat is unverified Submitted by: Just a Shadow on September 19, 2006

Locking Doors in Elementary School

You can lock the classroom, faculty, and library doors. All you have to do is after you go through a door, turn around and open the menu (triangle on default configuration) and hit lock door. Warning: A shibito may still open the door after it hits it 4-6 times, and if you have a shibito after you it may open the door while your locking it.
Verified by: this cheat is unverified Submitted by: MPegasus on April 06, 2006

Puzzle Game (PAL Version)

Acquire archive 087 on Kyoya Sudo's stage, Day 3, 03:00 to unlock the Puzzle Game.
Verified by: this cheat is unverified Submitted by: SerialZero on May 21, 2004

Stage Select

Complete the first 19 missions in the game and this feature will activate.
Verified by: this cheat is unverified Submitted by: Just a Shadow on September 19, 2006

Time Attack (PAL Version)

Finish every scenario, and objectives one and two for all stages to unlock Time Attack Mode.
Verified by: Jake Rockwell Submitted by: SerialZero on May 21, 2004
(0.0883/d/web8)