Complete Niflheim.
Open the Cave of Ages within 4 minutes.
Destroy the Jötun Ice Bridge.
Complete Asgard.
Kill 10 Jötun Invaders within 30 seconds.
Continue playing to unlock this secret achievement.
Acquired an upgrade.
Kill 4 or more enemies with a single melee attack.
Complete the game.
Maximize Thor's Odinforce.
Defeat a giant enemy without taking any damage.
Complete all Feats in Asgard.
Quickly obliterate 30 Frost Giants during the first battle on Niflheim.
Complete the game on Valhallan Difficulty (hardest).
Complete all Feats in Niflheim.
Complete Vanaheim.
Complete River Barge area with Mire Giant at 40% Health or better.
Reflect 3 of the War Beast projectiles.
Complete all Feats in Vanaheim.
Complete Muspelheim.
Stop the Resonator Beams in the Smelting Room without getting hit by them.
Crash the Core Drill within 4 minutes of landing on it.
Knock 30 enemies into abysses on Muspelheim.
Complete all Feats in the game.
Extinguish 10 Warlord flames with Wind Powers.
Complete all Feats in Muspelheim.
Prevent the Scabrite Bomb from detonating without using any tap or charged Elemental Powers.
Complete the defense of Asgard with 75% Morale.
Complete all Feats in Asgard Besieged.
Acquire all Valor Upgrades.
Unlock all costumes.
Unlock all Lightning Colors.
Maximize Thor's Health.
