Zatch Bell! Electric Arena [GBA]

Unlock Character: Brago & Sherry
Beat them in the Story mode

Unlock Character: Kolulu & Lori
Beat them in the Story mode

Unlock Character: Kanchome & Folgore
Beat them in the Story mode

Unlock Character: Rops & Apolo
Beat them in the Story mode

Unlock Character: Tia & Megumi
Beat them in the Story mode

Unlock mode: Mini-game "Create a Volcan!!"
Complete the game once

Unlock mode: VS Challenge
Complete the game once

Unlock mode: VS Survival
Complete the game once

Completion bonuses
Successfully complete the game to unlock the Create A Volcan mini-game, Vs. Challenge mode, and Vs. Survival mode.

Zatch Collection
Complete the indicated tasks to unlock the corresponding Zatch Collection item:

1. Volcan 300: Complete story mode.
2. Volcan (Mountain version): Complete the "Create a Volcan!!" mini-game under the easy difficulty setting.
3. Volcan (Doctor version): Complete the "Create a Volcan!!" mini-game under the normal difficulty setting.
4. Lori's Crown Of Flowers: Complete Challenge mode with Berserk Sherry under the normal difficulty setting.
5. Tina: Play the all top route under the Difficult difficulty setting in the Create A Volcan mini-game.
6. Crybaby Tangerine: Complete Story mode once.
7. Smiley-Face Orange: Complete Story mode twice.
8. Delighted Grapefruit: Complete Story mode three times.
9. Naomi's Car: Complete the "Naomi Attack!!" mini-game.
10. Volunlun: Complete the "Create a Volcan!!" mini-game under the difficult difficulty setting by using the bottom routes.
11. Kanchome's Snacks: Complete challenge mode with Ponygon.
12. Folgore's Skateboard: Defeat 00F Iron Folgore under the difficult difficulty setting.
13. Folgore's CD (Hey, Hey Let's Dance All Day! CD): Complete Challenge mode with Folgore and Kanchome.
14. Tia's Watch: Complete Challenge mode with Megumi and Tia.
15. Ponygon's Toy: Complete Challenge mode with Zeno and Dufort.
16. Princess Pear: Complete the "Create a Volcan!!" mini-game under the difficult difficulty setting, following the first and third bottom routes.
17. Praying Mantis Joe Figure: Complete the "Create a Volcan" mini-game under the difficult difficulty setting, following the final two bottom routes.
18. Kanchome's Paddle Board: Complete Challenge mode with Kalulu under the normal difficulty setting.
19. Yellowtail (unlocks fifth spell, press [Up] + [B] + [R])
20. Rusha's Sheep: Unlock Wonrei.
21. Evil Flower: Complete part 5 of story mode.
22. Friendship Curry (nasty): Unknown
23. Kiyo's Bag: Complete Challenge mode with Zatch.
24. Rocks Piled Up By Suzy: Complete Challenge mode with Apollo.
25. Owashi: Complete Challenge mode under the normal difficulty setting with Sherry.
26. Kiyo's Schedule: Complete Challenge mode under the normal difficulty setting with Reycome.
27. The Shining Red Spell Book (lets you play Rauzurk Zatch and Kiyo): Press [Up], [L], [R], [Down], [L], [R], [L], [Left], [Right], [R] at the title screen, the complete Story mode again.