Alien Wall Achievements Here is the full list of all 8 Alien Wall achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply Wall #1Defeat Alien Wall #1 Wall #2Defeat Alien Wall #2 Wall #3Defeat Alien Wall #3 Wall #4Defeat Alien Wall #4 Break Alien WallDefeat the final wall! Finish 5 Use all extrasUSe all extra weapons in a game Perfect BonusHave a perfect bonus flight