Successfully entertain Aphrodite

Kill Hercules

Burn 100 enemies with the Bow of Apollo

Cover Kratos in 500 buckets of blood by killing the enemies

Kill Hades

Discover the secret 'Hades Arm' room

Kill Poseidon

Defeat Master Utan.

Upgrade a weapon 10 times.

Build up a weapon into a new weapon.

Learn Windmill Slash from Dran.

Use Stand-in Powder to change to an ally when current character is exhausted.