Silent Hill 2
Hidden Options Menu
Go to the options menu and press L1+R1. This will take you to a special hidden
options menu.
Read All Writing
Once you get all five endings, go through the game again and you'll be able
to read all the writing on signs that was previously obscured. Neat, huh?
Now you have a reason to play the game a sixth time.
Remove Scratchy Filter
Once you have beaten the game once, restart the game. Go to the options menu
and press R1+L1 to reveal the hidden option menu. You will notice a new option
that will allow you to turn off the filter that permeates the game, bringing
you a clearer picture of what's going on.
Toggle Amount of Ammunition
Once you have beaten the game once, restart the game. Go to the options menu
and press R1+L1 to reveal the hidden option menu. You will notice a new option:
the ability to multiply the amount of ammunition you pick up. Multiply the
ammo amount by either two or three.
Unlock Another Hard Riddle Mode
Play through the game and beat all three riddle difficulty settings--Easy,
Normal and Hard. If you play through the game again on Hard Riddle level,
the puzzles will change, further boggling your mind.