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