Kill 5 Enemies in a Row with Headshots

Defeat 20 Enemies with Hand-to-Hand Combat

Find 20 Treasures

Find 1 Treasure

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

Find 100 Treasures

Finish the Game on Easy Without Changing the Difficulty

Finish the Game on Hard Without Changing the Difficulty

Kill 30 Enemies with the Desert-5

Kill 50 Enemies with the Dragon Sniper

Kill 100 Enemies with Headshots

Find 60 Treasures