Archives Trick
After you finished the game and unlocked the zuno game, go to the stage
where your archive is missing, take it, then in the menu select Back To
Title.Then, enter the zuno game and immediately exit. The game should ask you to
save on your game file. Save and the archive will be saved also.
Puzzle Game
Acquire archive 087 on Kyoya Sudo's stage, Day 3, 03:00
Time Attack Mode
Complete every scenario and objectives one and two for all stages
Stage Select
Complete the first 19 missions in the game.
Hidden movie
Complete the game with the second ending and collect all 99 archive items to
unlock the 100th item. Go to the stage select screen and move the cursor to the
upper right corner. There is a cinema that takes place in 684 AD showing the
fate of the alien visitor.
Brain Cell Revival (Zuno) puzzle
mini-game:
During Tamon Takeuchi's Day 3 03:00 level, a Brain Cell 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 appear at the main menu.
Hidden FMV sequence:
Successfully complete the game after finding all 100 Archives. A bonus FMV
sequence will be unlocked at the top right corner of the scenario selection
screen.
Mission Objectives 2:
To unlock Mission Objectives 2 for every character and/or scenario, complete
19 stages in any order. Then, press L1 + R1 while the stage is highlighted at
the scenario selection screen. Note: You will automatically obtain it after
completing the random 19 stages.
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