All weapons, infinite ammo, medikits
Go to the inventory screen. Highlight the "Small Medikit" then hold L1 + L2 + R1 + R2 + Up. Exit the inventory Scree to activate
All items
Go to the inventory screen. Highlight the "Large Medikit" then hold L1 + L2 + R1 + R2 + Down, Exit the inventory Scree to activate.
Special Features Option
Go to the inventory screen. Highlight the "Timex" (TMX) selection then hold L1 + L2 + R1 + R2 + Down + Circle and press Triangle. Quit the game and go to the main menu to find a "Special Features" option
View FMV sequences
Press Select + R2 at the main menu