Special Option!
When in the option menu press either L1, L2, R1, R2, and you will get the special option!

Kill the Demon Last boss without hitting it!
At the end of the game shoot all of your ammo out from every gun and the go to the boss. (the last boss must be in demon form)

Skip The Battle With Cybil!
If you grabbed the plastic bottle in the hospital and filled it up with the red liquid then your set. When your at the amusement park go to the ice cream stand. There should be a little ghost baby near it. Look for it. When you see it use the red liquid in the bottle on it. It should glitch a little but don't worry it will go back to normal soon. And you won't have to fight Cybil!