Acquire the Boreas Icestorm

Kill Cronos

Gut 3 Centaur Generals

Kill the Poseidon Princess

Kill Hermes and acquire his Boots

Cover Kratos in 500 buckets of blood by killing the enemies

Kill Hades

Upgrade any weapon to the next level

Kill Poseidon

Completed all low-level Cie'th Stone missions.

Discerned the full attributes of 100 enemies.

Took the fight to the enemy's door.