Kill 50 enemies using the Flamethrower

　　使用火焰噴射器(Flamethrower)殺死50名敵人

　　Peek a Boo! 20G

　　Kill a Stalker with the Seeker Rifle while in Zoom Mode

　　使用探索者步槍(Seeker Rifle)利用縮放模式殺死Stalker

　　Brute Juke 10G

　　Kill a Brute without taking damage

　　無傷殺死一個Brute

　　Shoot the Limbs! 10G

　　Dismember 25 Necromorph Limbs (single player only)

　　肢解25個敵人的肢體(限單人模式)

　　Bouncing Betty 10G

　　Kill a Cyst by catching its Mine and throwing it back

　　殺了Cyst再把他抓住再投回去(不曉得是先殺在投還是直接投到死)

　　Skewered in Space 15G

　　Impale an enemy into a Decompression Window to cause it to blow out

　　穿刺1個敵人再到減壓窗口引爆(不解待高手補完)

　　Hard to the Core 50G

　　Complete the game on Hard Core setting

　　完成Hard Core難度

　　Clean Cut 10G

　　Sever all three tentacles of a Lurker with one Line Gun Primary Fire shot (single player only)

　　使用Line Gun一發(fā)切斷Lurker(背上伸出3個觸角的娃娃)的3個觸角(限單人模式)

　　Lawnmower Man 10G