Action Alien: Tropical Mayhem Achievements Here is the full list of all 10 Action Alien: Tropical Mayhem 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 Kill 500 Aliens Kill 1000 Aliens Kill 100 Aliens Soldiers Kill 100 Aliens With Grenades Kill 10 Boss Aliens Kick 50 Aliens With Leg Kicks Destroy 12 Aliens Nests Kill 100 Aliens With Revolver Achieve 1000 Score Points Complete the Game !