Won an online Team Disintegration match in the Game Grid. 2 or more human players required.

Get a 15X Hit multiplier

Gained a Version (Level) for the first time

Kill 10 000 Zombies

Complete Campaign Mode On 'Normal'

Blow Up 1 000 Zombies

Complete Mission 8 (Any Difficulty Level)

Complete Mission 6 (Any Difficulty Level)

Complete Mission 4 (Any Difficulty Level)

Cause chaos for the first time.

Finished the game without using Vita-Chambers.

Found 100 audio diaries.

Reunited with your original Little Sister.