Play in the Swimming Pool on the Cruise Ship

Kill 20 Enemies with Headshots

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Easy Without Changing the Difficulty

Kill 50 Enemies by Melee-Attacking from Behind

Kill 20 Enemies with a Single Punch After Weakening Them with Gunfire

Find 20 Treasures

Kill 20 Enemies with Gunfire While Hanging

Activate a Tweak

Defeat 50 Enemies with Hand-to-Hand Combat

Find 1 Treasure

Kill 50 Enemies with the M4