The Temple of Zeus
The Optional Bonus Temple which allows you to get the ‘Grave Digger’s Shovel’ Relic

The Temple of Zeus: Complete the game on any difficulty

Unlockable Costumes
Deimos: Beat the game on Spartan Mode (Hard).
Ghost of Sparta: Beat the game on God Mode (Very Hard).
God Armor: Beat the game on Spartan Mode (Hard).
Grave Digger: Beat Temple of Zeus.
Robotos: Purchase for 250,000 in Temple of Zeus.

Unlockable Modes
Combat Arena: Beat the game.
God (Very Hard): Beat the game.

Special Item Locations
These items can be used after finding them and completion of the game.

Aphrodite’s Ambrosia: Gain the Might of Sparta attack: Complete the sex minigame in Sparta 3 times.
Athena’s Owl: Helps find treasures.: After Kratos destroys the Athena statue in a cut scene, search the right side in a pile of debris
Bonds of Ares: Infinite Magic: After you enter the Domain of Death through the Death Gate in Atlantis, look in the south section of the screen.
Callisto’s Armlet: Automatically win context sensitive mini games.: Right after you beat Callisto, search the ground by the battle.
Grave Digger’s Shovel: Play as Zeus in Arena Combat: Unlock everything in the Temple of Zeus and follow the path created
King’s Ring: Collects 10 times the amount of red orbs: After King Midas turns the lava into gold, drop down by the area where he touched it.