KOP KILLER 22XX Achievements Here is the full list of all 45 KOP KILLER 22XX 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 The CellsComplete 3 Sewer Arenas in Arcade Mode in one run The LabsComplete 3 Cell Arenas in Arcade Mode in one run The Prison YardComplete 3 Lab Arenas in Arcade Mode in one run Titus EnglewoodEscape the WARRIOR brainwashing program Vilma RiveraComplete your first Cell Arena Shakeel FosterComplete your first Lab Arena BrotherComplete your first Prison Yard Arena Heavy ArmsKill 50 Beat KOPs in Arcade Mode Mirror StrikeKill 50 Pistolero KOPs in Arcade Mode in a single run Bouldering MasteryKill 100 Fascist Goons in Arcade Mode in a single run Muscle RelaxersKill 50 Drones in Arcade Mode Knockback ResistanceKill 25 foes by knocking them into hazards in Arcade Mode Adrenaline RushKill 100 Riot KOPs in Arcade Mode Slide AttackKill 50 Fascist Goons in Arcade Mode Energy ShieldKill 30 Riot KOPs in Arcade Mode in a single run Knockback PowerKill an enemy by knocking them into hazards in Arcade Mode Combat StimulantsKill 50 foes by doing fall damage in Arcade Mode Double JumpClear 5 Sewer Arenas in Arcade Mode Grappling HookClear 5 Cell Arenas in Arcade Mode Replicator AccelerantClear 15 Lab Arenas in Arcade Mode MagnetismClear an Arena with full health and ammo Combat SteroidsKill 50 Beat KOPs in Arcade Mode in a single run Cranial ImplantKill 200 Beat KOPs in Arcade Mode Uranium MunitionsKill 50 Pistolero KOPs in Arcade Mode Guerrilla MunitionsKill 30 foes with ranged attacks in a single Arena Pain KillersKill 50 Drones in Arcade Mode in a single run Potassium IodideKill an enemy with fall damage in Arcade Mode Turbo DefibrillatorRevive 10 comrades in Arcade Mode Heavy MunitionsKill 15 foes with ranged attacks in a single Arena Ground PoundKill 50 foes while they are knocked out in Arcade Mode Weapon MasteryBreak 100 weapons by wearing them out in Arcade Mode Rupert McGeheeClear 10 Arenas in Arcade Mode in one run FK-12Clear 5 Lab Arenas in Arcade Mode in a single run Combo BlastComplete 100 Combos in a single run Combo RegenComplete 20 Combos at full health in a single run Combo RushComplete 10 Combos of at least 15 hits in a single Arena Combo FuryPerform a 25 Hit Combo in Arcade Mode Emergency BreakBreak 15 Combos of at least 4 Hits in a single run Resilient ComboComplete 3 consecutive, unbroken Combos in a single Arena Upgrades Act IFind every upgrade in Act I Clear Act IClear every level of Act I Inmate Savior Kill LarryKill Larry Mine King First UpgradeFind your first upgrade