Costumes
Black Jaguar - Complete the game on Path of the Mentor. Camouflage - Complete the game on Path of the Warrior. Dark Blood - Complete the game on Path of the Acolyte. Golden Ninja - Complete the game on Path of the Master Ninja.
Difficulty Settings
Path of the Mentor - Complete the game on Path of the Warrior.
Path of the Master Ninja - Complete the game on Path of the Mentor.
Game Options
Classic Film Filter - Complete the game on any difficulty.
Music Test - Complete the game on any difficulty.
New Game Plus - Complete the game on any difficulty. Loading a finished game allows you the option of playing a New Game Plus, which starts you off with everything that you accrued during your past game except for quest items.
Gamerpics
Gamerpic - Collect all Crystal Skulls Ryu Gamerpic - Complete the game on Path of the Master Ninja.