Complete an area in co-op
Complete a Survival mode arena without losing a life
Learn how to operate your walker and complete Bootcamp
Complete an area in Katharsis without getting hit
Don't push over any trees in Trespassers
Destroy all lightning harvesters in Fog of War
Don't take any damage from sea mines in Tide of Battle
Defeat Julius Steelwell and save the world by destroying The Butler
Complete all areas on the hardest difficulty
Clear all Survival mode arenas
Defeat General Brutus by destroying The Excavator
Fully upgrade your walker
