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 Sword!
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!
Hit garbage on the ground repeatedly!
Defeat the Mind Transfer Challenge!
Melee an enemy while high above the ground!
Mind transfer into a Flame raptor!
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!
