Skull Skull Skull Achievements Here is the full list of all 15 Skull Skull Skull 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 Easy!Reach Wave 16 in Easy Mode Normal!Reach Wave 16 in Normal Mode Hard!Reach Wave 16 in Hard Mode Insane!!Reach Wave 16 in Insane Mode DEMONIC!!!Reach Wave 16 in Demonic Mode 3 birds, 1 stone. I mean 3 skulls, 1 bullet.Kill 3 Skulls with 1 bullet I need more bullets!Run out of bullets 10 Skulls dead, dead again I mean?Kill 10 skulls in one game 100 Skulls dead dead.Kill 100 skulls in one game 1000 Skulls dead dead dead.Kill 1000 Skulls in one game DIE DIE!!Burn and Shoot a skull I need Bigger Weapons!!Unlock all gun accessories No more spicy juice :(Run out of fuel for the flamethrower Change your outfit UwUCustomize your character Dash and Die !Get killed while dashing