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