Zatch Bell! Mamodo Battles

Unlock the Password Option by defeating ten opponents in the Story Mode. Access the Bonus menu to enter the password screen.

UCKAHEIT ... Play as Laila and Albert

Ponygon ... Pursue time attack mode and when you engage Ponygon, defeat him to unlock him.

Zofis ... Accrue all spell cards.

Victoreem ... Accrue all event cards.

Laila and Reira ... Accrue all mammodo cards.

Laila and Reira (Awake) ... Accrue all partner cards.

Play as Wonrei and li-en and select them in time attack. All you have to do is keep pressing X to defeat your opponents. Watch out for Ponygon and Kanchome/Folgore, they can be devestating fighters.