Description: get twelve hidden gorgon eyes - detailed description - where to find those - below.
Realm of Hades
After getting control over your character's body - just after the scene with Athene - you will be forced to go ahead and make a jump with a swing (R1). In that way, you will reach a platform below. You'll find there two chests, one with red orbs and one with the gorgon eye.
When you reach the place where you have to glide in order to land on a stone platform, a longer sequence of climbing will be ahead of you. After getting to the top, go towards the waterfall on the left. Jump through it and made the hidden recess with the chest of gorgon eye.
Judges of the Underworld
This hidden item should be find at the very beginning of the level, just after the battle. Before going towards the statue of judges turn into left. You will spot there a destroyed bridge - jump over and go to the very end of the platform. You will find there a chest with experience and the gorgon eye.
The item can be obtained during the visit in the forge. After the conversation with Hephaestus - before setting off - turn into left and go towards the closed gate. Next to it you will find another gorgon eye.
The City of Olympia
At the beginning of the level you will have to go through the cave. During the trip you will come across two precipices. In order to travel over them you have to make use of harpies. During the second flight you will get a chance to reach a hidden ledge on the right - jump on it from the second harpy. You will find there chests with experience, the gorgon eye and the minotaur horn.
Path of Eos
At the beginning of the path you will come across the light which gives you the possibility to save the progress of the game. Near that area is the chest with the grogon eye - on the left, beyond the scope of the game camera.
A bit further, covering the path which leads towards the top, you will discover two chests with red and blue orbs (just after the fight with the new breed of enemies). However, more important will be one which is hidden on the right behind the wall (use the head of the Helios to uncover it). Thanks to that you will get another gorgon eye.
The Flame of Olympus
Just after the starting point of the level you job will be to catch the messenger of the gods. Before you go after him, walk towards the place where the fragment of the chain of the balance is located. On the left side of it you will find hidden room with some chests - use the head to open the entrance - in one of them will be the gorgon eye.
The Flame of Olympus Part 2
During the second trip through the corridors in the Flame of Olympus level, you will ended up in the very long corridor. Some wraiths will attack you there. Dispatch those creatures and go down the stairs - at the bottom you will find a hidden chest, use the head to uncover it. Inside the chest will be the gorgon eye.
Another eye is in the chamber with the Poseidon's princess - you will reach that place at the end of the level, just after the room with many teleports. On the right, in one of the alcoves (in the one which is a bit more further from the camera), you will find the godly possession. Near that place a chest with the gorgon eye is hidden too (an alcove closer to the camera).
In order to get this upgrade (one of many in this room) you have to launch the rope into the teleport on the left side, whereas the launcher is raised. In that way the rope will give you a chance to reach the platform with the chest and the gorgon eye.
During the level in Hera's Garden you will get yourself into the corridor with satyrs (the new type of enemies). After leaving the narrow path, on the right, behind the hedge, you will find another two chests with experience and one with the gorgon eye (it will be hidden - use the head to uncover it).