Unlock every Arena.
Reach 100% completion on any difficulty.
Unlock every soldier.
Beat the Armies of the Night arcade game.
Complete all bonus objectives.
Complete the final Flashback chapter.
Create a gang in Rumble Mode.
Complete the story on Hardcore Soldier difficulty.
Complete Come Out To Play.
Reach rank 10 for push ups, chin ups, sit ups, and the heavy bag.
Reach over 10 hours of playtime.
Spray your first tag.
Reach the High Score Goal for any chapter.