Hit garbage on the ground repeatedly!
Kill 500 enemies with a Sword!
Mind transfer into a Flame raptor!
Kill 3 enemies with one attack!
Defeat the Endless Armor Challenge!
Defeat the Raptor Insanity Challenge!
Defeat the Raptor Challenge!
Defeat the Spear Only Challenge!
Die on level 1 of Endless Mode
Kill your clone.
Get 3 Team Revives in a public co-op game!
Rescue the War Cubes!
Beat Chapter 1 on Insane Difficulty!
Beat Chapter 2 on Insane Difficulty!
Beat Chapter 3 on Insane Difficulty!
Defeat the Endless Bow Challenge!
Beat Chapter 4 on Insane Difficulty!
Beat Chapter 5 on Insane Difficulty!
Be the second to Last Bot Standing.
Beat a level without killing anyone!
Win a game of Last Bot Standing!
Kill 500 enemies with a Bow!
Kill 500 enemies with a Hammer!
Kill 500 enemies with a Spear!
Kill 200 enemies by kicking them!
Defeat the Greatsword Challenge!
Kill 300 enemies with Flame Breath!
Kill 300 enemies while jetpacking!
Kick a kick bot to death!
Reach Titanium in Endless Mode!
Reach Insanium in Endless Mode!
Reach Insanium in a public co-op match!
Kick a clone towards the Elevator.
Jump into the Emperor's forcefield!
Defeat the Mind Transfer Challenge!
Melee an enemy while high above the ground!
Win 3 levels in a row with only one leg!
Get every upgrade in the upgrade tree!
Defeat the Co-op Bow only Challenge!
Defeat the Co-op Hammer Only Challenge!
Defeat the Co-op Inferno Challenge!
Defeat the Co-op Kick Only Challenge!
Defeat the Co-op Laser Challenge!
Defeat the Co-op Random Upgrade Challenge!
Defeat the Endless Hammer Challenge!
Defeat the Co-op Raptor Insanity Challenge!
Defeat the Co-op Spear Only Challenge!
Defeat the Co-op One Weapon Challenge!
Kill all the garbage bots.
Exchange Hellos with a human.
Defeat the Co-op Zombie Challenge!
Defeat the Ally Challenge!
Defeat the Spider-tron Challenge!
Defeat the Co-op Spider-tron Challenge!
Defeat the Enemy Zombie Adventure!
Defeat the Inferno Challenge!
Defeat the Kick Only Challenge!
Defeat the Laser Challenge!
Defeat the Random Upgrade Challenge!
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