Complete the following tasks to unlock PlayStation 3 trophy rewards.

Trophy	How to unlock
Blood for the Blood God (Bronze)	Complete Chaos Invasion Arena 2.
Death to the False Emperor (Bronze)	Complete Chaos Invasion Arena 1.
Frugal Spenders (Bronze)	Complete a Chaos Invasion Arena without your team using any lives.
Glory to the Dark Gods! (Silver)	Achieve a team score of higher than 270,000 in the Chaos Invasion mission.
Heretic (Bronze)	Complete a public Co-op game in the Chaos Invasion mission.
Kill, for the Sake of Killing (Bronze)	Complete 3 challenges in one Chaos Invasion Arena.
Let the Galaxy Burn (Silver)	Complete the Chaos Invasion mission.
Let the Heavens Bleed (Silver)	Defeat the Chaos Invasion bonus wave.
Skulls for the Skull Throne (Bronze)	Complete Chaos Invasion Arena 3.