Extra Options:
Press L1 or R1 at the options screen to display an extra options menu with blood color, map zoom, and other selections.

Completion Bonuses:
Beat the game. Start another game and enter the extra options menu to access new features.

-A "Bullet Adjust" option can be set, allowing the normal amount of ammunition found at a location to be doubled or tripled.
-A "Noise Effect" option can be set.
-Another new option can be set, allowing scenes to be viewed without distortion.

Additional Puzzle Difficulty:
Beat the game under the easy, normal, and hard puzzle difficulty settings. Select the hard puzzle difficulty again and begin a new game with a new combination of puzzles.

Reveal Signs:
Unlock all five endings, then start a new game. All signs will now be revealed.

Chainsaw:
Beat the game under the normal difficulty and normal puzzle difficulty settings. Start a new game to find a chain saw among logs before the cemetery.

Hyper Spray:
Beat the game two times. Start a new game to find the Hyper Spray on the south side of the motor home.

Crimson Cermony Book:
After you get to room 312 and wacth the movie go back to the reading room and on the top shelf on the side with the sick be conversation their is the Crimson Ceremony book which you have to have for the rebirth ending (replay game only).

Photo Finish:
In the Ble Creek Apartments, after you meet Angela in the room when she gives you the knife, there is a photo on the floor. Check it out and it might change the ending of the game!

Funny Chainsaw Easter Egg:
After you get a chainsaw, sometimes in the game you just stand with the chainsaw equiped and he will scream. I found this out by looking at a book and forgot to pause it, my brother told me to look at it!!! it is pretty hilarious!

GameShark Codes

(M) Must Be On  
EC8DBED014431F04
 
Infinite Health  
4CA9F29A145625DD
4CA9F2A2145625DD 

Thanks to Revolution readers Creeper, Joe D'Errico, Zac Petrak, Steffie Bozzo, Jeffrey Wanakamik and Fiffy Short Cockings!