Brain Cell Revival (Zuno) puzzle mini-game
Find Archive 087 in Kyoya Sudo's stage (03:00 on Day 3).



Mission Objectives 2
To unlock Mission Objectives 2 for every character and/or scenario, complete 19 stages in any order. Now, press L1 + R1 while the stage is highlighted at the scenario selection screen. *** You will automatically obtain it after completing the random 19 stages.



Hidden FMV sequence
Win the game after finding all 100 Archives. A bonus FMV sequence will be unlocked at the top right corner of the scenario selection screen.



Break strangleholds
If you get too close to a regular Shibito, it will sometimes prefer to grab you by the neck and choke you to death instead of doing a regular attack. When one takes you into a stranglehold, rapidly move the Left Analog-stick Up and Down.


This will break the hold, and prevent you from dying.



Time attack mode
Complete the 1st 2 objectives on all levels in every scenario to unlock the 1st ending sequence. Now, press Square at the scenario selection screen.

PS2 Cheats for Forbidden Siren

Forbidden Siren cheat codes

Forbidden Siren cheats