God Mode
Hold L1 and R1 then enter UP, UP, DOWN, UP, X, SQUARE, X, CIRCLE, UP, DOWN, TRIANGLE, START.

Drink from canteen
To drink from the canteen, hold X. If you instead tap X, it will take longer. Holding X also helps when you fill your canteen.

Art gallery
Collect all artifacts in the game to unlock an art gallery.

Items from boxes
Press Square to break boxes, then press Triangle to pick up the item. *** Note all boxes contain items.

Magical barrier
Equip the PaCheng and press R1 to block.

Pistol whip
Press Square to pistol whip your adversary. *** This works for all guns, not just the pistols.

Break wall in Istanbul Sunken City
To break the damaged wall when you reach Istanbul Sunken City, hover above the head in the water with the crane. Press X and it will automatically break it up.

Avoid falling damage
To enter combat mode press R1 before you hit the ground . You will not get any damage from falling.