Collect all of the Phoenix Feathers

Kill Cronos

Gut 3 Centaur Generals

Kill the Poseidon Princess

Burn 100 enemies with the Bow of Apollo

Kill Helios

Kill Hades

Discover the secret 'Hades Arm' room

Acquire the Bow of Apollo

Rip apart 1 Olympus Sentry

Win a multiplayer game on Rooftops while on the winning team for at least 50% of the match.

Complete all the Downtown missions in a single player campaign.

Destroy 1000 breakable objects in a single player campaign.