Gatling Gears

Can't Touch This

Complete an area in Katharsis without getting hit

Veteran

Complete all areas on the hardest difficulty

Gladiator

Clear all Survival mode arenas

Green Peace

Don't push over any trees in Trespassers

Survival of the Fittest

Complete a Survival mode arena without losing a life

Mine! Mine! Mine!

Don't take any damage from sea mines in Tide of Battle

Thunder Struck

Destroy all lightning harvesters in Fog of War

Back to Retirement

Defeat Julius Steelwell and save the world by destroying The Butler

Take it to the Max

Fully upgrade your walker

You Never Walk Alone

Complete an area in co-op

Second in Command

Defeat General Brutus by destroying The Excavator

Iron Man

Learn how to operate your walker and complete Bootcamp