You're able to switch between 2 characters during the game. See controls.html on how to switch.
Bravest and most respected knight of the castle. Advantage: Popolon can destroy rocks in 3 hits and has a variable height jump. Disadvantage: Popolon can't stay long under water and can only shoot or put 2 weapons at once.
This girl is the Greek goddess of love and beauty. Advantage: Aphrodite can stay long under water and she can shoot or put 3 weapons at once. Disadvantage: Aphrodite needs 15 hits to shatter a rock and she can't pass the rotating doors. She is not able to shatter the weak walls.
Some items effect some of the disadvantages.