Create a customized weapon.

Kill a zombie with 10 different melee weapons.

Reach level 10.

Kill 50 zombies using a vehicle.

Complete all levels in Director's Cut

Collect 15 posters

Complete a level without triggering an enforced reload (i.e. reaching zero bullets)

Achieve a Goregasm

You have successfully completed an R&D test

Complete all levels in Story Mode

Buy a new weapon

You have completed your first career race