Lure and kill a predator.

Return to the doctor with the cave mushrooms.

Complete the Game in Crushing mode

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

Defeat enemies with the vehicle, long-gun, melee, and grenade, in that order, in 20 seconds

Defeat 4 enemies with the vehicle in 20 seconds

Defeat 20 enemies with C4

Stealth take-down 10 armored enemies with melee by first removing their helmets without being detected

Destroy the helicopter without defeating any other enemies

Find all the treasures

Destroy a vehicle in Chapter 9 with an explosive

Use every gun in the game

Defeat 20 enemies firing from-the-hip