Start the Single Player Campaign on any difficulty.

Score four unanswered goals against the CPU or an online opponent in a ranked match

Start the 4th period losing by 5 or more points and win the game with any team.

Survive the onslaught from the deformed Joker henchman

Take down Zsasz in the Patient Pacification Chamber

Kill Zeus

Completely upgrade all weapons

Acquire the Boreas Icestorm

Kill Cronos

Gut 3 Centaur Generals

Kill the Poseidon Princess

Rip apart 1 Olympus Sentry

Kill Helios