Here are some cheats and tips for the game Zatch Bell! Mamodo Battles.
Password mode:
Defeat the first ten opponents in Zatch Bell’s story line to
unlock the password option in the Bonus section.
Play as Laila and Albert:
Enter “UCKAHEIT” as a password.
Play as Zeno and Dufort:
Press Up(2), Down(2), Left, Right, Left, Right, B, A at the
title screen.
Play as Zeno and Dufort in story mode:
Press Up(2), Down(2), Right, Left, Right, A, B at the title screen.