Kill 20 Enemies by Shooting from the Hip (without aiming)

Kill 30 Enemies with the Desert-5

Kill 50 Enemies with the M4

Kill 100 Enemies with Headshots

Find 20 Treasures

Kill 20 Enemies with Gunfire While Hanging

Explore Photo Mode

Kill 5 Enemies with 1 Explosion

Defeat 50 Enemies with Hand-to-Hand Combat

Kill 5 Enemies in a Row with Headshots

Find 1 Treasure

Beat game on Olympian Difficulty

Acquire the powers from all twelve Olympian Gods