Help Fate of Atlantis: The Action Game
 

Hi everyone!!
I'm playing a very old game, Indiana Jones and the Fate of Atlantis: The Action Game.
In the last level (Atlantis), I'm having some troubles: I need some Orichalcum but I don't know how to get enough.
If someone could help me, I would be very pleased.

Thanks in advance.
Lucasmaniac