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

Defeat 30 Enemies in a Row with Your Side Arm

Kill 10 Enemies in a Row, Alternating Hand-to-Hand Combat and Gunfire

Kill 30 Enemies with the Dragon Sniper

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

Finish the Game on Hard Without Changing the Difficulty

Finish the Game on Easy Without Changing the Difficulty

Compare Statistics with Friends

Find all Treasures and the Strange Relic

Kill 30 Enemies with the M9

Find 80 Treasures

Kill 30 Enemies with the Mk-NDI

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)