Find all the treasures

Open 5 lockboxes

Use every gun in the game

Make it to the outskirts of Halebidu in Chapter 5 without using a firearm or explosive

Stealth take-down 15 enemies in a row

Open every lockbox

Complete the Game

Just prior to City Chase, stand perfectly still for 30 seconds (stage demo fail)

Play in the ocean near the sunken ship

Hit all targets in the attic with the toy gun

Pull 20 enemies over when hanging from a ledge

Destroy 10 vehicles while being dragged from the rope