Earn the top score objective in any level

Completed 5 missions in the Arid Badlands

Use the secondary fire of each weapon in the Single Player Campaign

Kill 50 Chimera with Riley's axe in the Single Player Campaign

Kill your first Damned Zombie.

Kill 500 Chimera in the Single Player Campaign

Successfully complete level 3

Kill 250 Chimera in the Single Player Campaign

Successfully complete level 2

Successfully complete level 1

Perform 1 "-ality" using the PlayStation®Vita system touchscreen

Kill an enemy with shield bash

Complete Story Mode 50%