Astro Tripper Achievements Here is the full list of all 8 Astro Tripper achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonSneeky IncursionDestroy the Boss without opening more than one outer door. Only 1 of the 3 outer doors may be opened to any degree. 18 April 2012 - Add a guideWorm TangleDestroy 3 Worms in sequence on The Ooze. 18 April 2012 - Add a guideWheel CollectorComplete level Fizz Wheels without killing a Fizz Wheel, ( the rolling wheels connected by a laser ). 18 April 2012 - Add a guideTank OppressorDestroy 20 tanks in sequence. 18 April 2012 - Add a guideSpidery PointDestroy the Spider Boss on Arachnophobia, without destroying any of its mini guns. 18 April 2012 - Add a guideFly SwatterDestroy 3 Flypods within 5 seconds on any level of Insect Infestation. 17 April 2012 - Add a guideTank SympathizerDestroy both generators on Claustrophobia without killing a Tank. 17 April 2012 - Add a guidePod OppressorDestroy 10 mutated pods in any one level of Training Grounds. 17 April 2012 - Add a guide