Kill 30 Enemies with Mk-NDI Grenades

Kill 20 Enemies with Headshots

Find 1 Treasure

Kill an Enemy While Playing as an Alternate Character Costume Other Than Drake

Find all Treasures and the Strange Relic

Find 50 Treasures

Find the Strange Relic

Kill 75 Enemies in a Row Without Dying

Kill 20 Enemies with Brutal Combo

Kill 10 Enemies with Grenades While Hanging

Kill 30 Enemies with the M79

Kill 20 Enemies with Gunfire While Hanging

Beat 'Chapter 5 - The Fortress' in less than 10 minutes