Populous 3 Playstation Cheats

Cheat mode:
On the first level press X on all the trees on your island, you will hear a clap of thunder and you will now have all buildings
and spells in the pause screen, just go to cheat mode at the bottom of the screen.

If you want to cheat on other levels just go to quit level and select level 1, then when you finish level 1 quit it and go to your current level.