Collect every type of hat in the Zone.
Kill 10 enemies using 'Chain Lightning'.
Taunt a crew member who is under mind control.
Kill a crew member.
Knock down 10 enemies using 'Hog Rush'.
Collect every artifact in the Zone.
Possess 10 enemies with 'Puppeteer'.
Destroy 5 Pod Spawners before they release new enemies.
Turn 3 enemies at once into cover.
Use 'Corpse Eater' to interrupt a resurrecting enemy.
Convince Big Khan to join your crew.
Kill 3 enemies in a row whilst invisible.
Collect 100% of Pripp's artifact wishlist.
Reach Eden.
Improve 5 upgradable weapons to level III.
Trap 10 enemies using 'Tree Hugger'.
Decommission 10 'Mechanical men.
Collect 50% of Pripp's artifact wishlist.
Kill an enemy by knocking them off a high place.
Put 5 Zone Dogs 'to sleep'.
Kill 40 Ghouls.
Return to the Ark!
Kill an enemy by making the Pyro drop his Molotov.
Unlock all Mutations in each character's skill tree.
Obtain all achievements!
Complete all of Pripp's side-missions.
Collect 600 scrap.
Collect all notes in the Zone.
Hit 3 enemies at once with Big Khan's Ground Pound.
Complete the SEED OF EVIL without using medkits.
Complete the SEED OF EVIL in IRON MUTANT mode.
Reach Eden in 'IRON MUTANT' mode on VERY HARD.
Reach Eden in 'IRON MUTANT' mode on VERY HARD without losing a crew member.
Reach Eden in 'IRON MUTANT' mode (Any difficulty).
