Unlock Cosmic Disc:
Give Pios 10 Enemy Cards

Unlock Survival Book:
Give Pios 100 Enemy Cards
Soul Scroll:
Give Pios 200 Enemy Cards
Unlock Book of Elders:
Give Pios 276 Enemy Cards

Unlock Advanced Mode:
When you have beaten the game save it and when you next start from the begining the enimies are harder buy you will retain all you levels, gold and items from your defeated game.