Endless Boss Fight Achievements Here is the full list of all 17 Endless Boss Fight 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 SpeleologistBeat the game and escape the cave Treasure aheadFall into the pit of gold Burned by lavaHow did you did it? Death vortexManage to kill Astra while standing in the black vortex of death Skitter, the true final bossThat is his name if you wondered The eldritch fiendGet acquainted with the standing guy InvincibleComplete 3 Mission no damage CocytusComplete Mission 9 By the time the sandstorm endsComplete the game in 2 hours The game inside the gameComplete Mission 14 DebufferComplete Mission 16 with all the obelisks destroyed The bad catcherKill Astra on Mission 15 No sword can harm usKill 17 ghosts Please not the blue one againDestroy a totem Struck by ballsBeing killed by ghost's electric balls Platinum bedouinComplete all the achievements Puzzle enjoyerKill both clones in Mission 14