Freefall for the longest possible time. (The Ballad of Gay Tony)

Perform your first Babality

Become leader of The Lost. (The Lost and Damned)

You killed a Rockstar in multiplayer.

Collect all of the Gorgon Eyes

Collect all of the Minotaur Horns

Collect all of the Phoenix Feathers

Perform a 1000-hit combo

Gut 3 Centaur Generals

Kill the Poseidon Princess

Kill Hermes and acquire his Boots

Kill Helios