Complete all of the Crater Hunts

Obtain all of the Apples of Iðunn and Horns of Blood Mead

Obtain all Shields

Remember the Spartan teachings

Pet Speki and Svanna

Retrieve Mardöll

Battle Níðhögg

Acquired three legendary race cars that were once destined to win 24 hour races.

Destroy Grýla's cauldron

Upgrade one piece of armor

Battle the God of Thunder

Stealth kill all enemies in the mission "Madd Dogg's Rhymes".