Unlock Trophies
Annihilator (Bronze) - Kill more than 85% of the total enemies in a zone.
Small Arms Expert (Bronze) - Finish a zone without using grenades or nukes.
Speed Freak (Bronze) - Finish a zone in less than 15 minutes.
Survivor (Silver) - Finish a zone killing 60% of the units on foot.
Assault Hero (Gold) - Complete the game.
Exterminator (Bronze) - Defeat the giant spider.
Lair Slayer (Silver) - Complete all underground zones without using a continue.
Peace Maker (Silver) - Finish a zone killing less than 50% of the enemies.
Sharp Shooter (Silver) - Keep your accuracy higher than 70%.
Tricked Out (Bronze) - Max out all of the vehicle power-ups.
Twin Medal (Bronze) - Finish a zone in Co-op mode.
Unstoppable (Bronze) - Finish a zone without losing a life.