Primal cheats and cheat codes for Playstation 2

Cheat codes
Go to the main menu, or options menu, simultaneously hold L1 + L2 + R1 + R2 
for at least 7 seconds. The code entry screen should be appear. Type the 
following cheat codes by using X, Left or Right buttons on your controller. 
Push Square to accept the entered code. Press Triangle to leave the 
code entry screen.

Aetha venues: Unknown
Aquis venues: MOONPOOL
Bonus 1: Unknown
Bonus 2: PRIMAL
Bonus 3: DEMONREALMS or LORDOFCHAOS
Bonus 4: MORTALIS
Bonus 5: OBLIVION 
Easy Kill: DEAMONISE or KILLSWITCH
God mode: MONSTROUS
Solum venues: WINDCHILL
Tarot Card Gallery: Unknown
Volca venues: Unknown

Cheats for the collectors edition and PAL version of game:
Aetha venues: FLINTLOCK
Aquis venues: CHARYBDIS
Bonus 1: SEABREEZE
Bonus 2: AURORA
Bonus 3: PSYCHOSIS
Bonus 4: MIRRORY
Bonus 5: ASCENDENT 
Easy Kill: MORTIFIC
God mode: DEMONISE
Solum venues: SNOWFLIGHT
Tarot Card Gallery: ARCANUM
Volca venues: SUNSTONE

Unlock concept art
Find various Tarot Cards. 
You can view, after finished the first chapter of the game.

Unlock Actors Featurette option
Finish the Solum realm

Unlock Making Of option
Finish the Aquis realm

Unlock 16 Volt Interview option
Finish the Aetha realm

Unlock Trailer Video option
Finish the Volca realm