Exterminator
Defeat the giant spider.



Sharp Shooter
Keep your accuracy higher than 70%.



Unstoppable
Finish a zone without losing a life.



Lair Slayer
Complete all underground zones without using a continue.



Annihilator
Kill more than 85% of the total enemies in a zone.




Small Arms Expert
Finish a zone without using grenades or nukes.



Twin Medal
Finish a zone in Co-op mode.



Speed Freak
Finish a zone in less than 15 minutes.



Peace Maker
Finish a zone killing less than 50% of the enemies.



Tricked Out
Max out all of the vehicle power-ups.



Survivor
Finish a zone killing 60% of the units on foot.



Assault Hero
Complete the game.