All Artifact locations At Ceylon:
Idol Of Ramba Vihara=Gates Of The Lost City
Mahavatu Mask=The Hunter's camp
Port Negombo Relic=The Palace Of Forgotten Kings.
First artifact:
On the first level go to the water fall and go behind it and you will find the first artifact of the game.
How to unlock Art Gallery:
Get all the artifacts in the game.
God Mode:
At the Press Start screen, hold L + R and press press Up, Up, Down, Up, A, X, A, B, Up, Down, Y, Start.