Castle Stage:
Obtain Red Card number 37 Vamoon.

China Temple Stage:
Obtain Red Card number 35 Tsuaoron.

Dr Nazonazo's Stage:
Obtain Yellow Card number 138 Mikoruo ma Zegaruga.

Egyptian Stage:
Obtain Red Card number 36 Belgim E O.

Forest Stage:
Obtain Red Card number 72 Umagon.

Leila / Albert:
Purchase all Event cards.

Leila / Albert waking:
Purchase all Partner cards.

London Stage:
Obtain Red Card number 59 Victoreem.

Milordo-Z / Koko:
Purchase all Spell cards.

Moon Tower Stage:
Obtain Red Card number 38 Demoruto.

Play as Mr. Riddles:
To play as Mr. Riddles, defeat him in any story mode.

River Side Stage:
Obtain Yellow Card number 172 Baberuga Gurabidon.

Unlock Maestro as a playable character:
By winning 300 times in Time Attack mode Maestro will challenge you. Beat Maestro to unlock him into play (2 victories over a single opponent is counted as 1 win).

Unlock the Zeno Story:
To unlock the Zeno Story enter Up(2), Down(2), Left, Right, Left, Right, Circle, X at the title screen.

Unlock Zeno:
To unlock Zeno enter Up(2), Down(2), Left, Right, Left, Right, X, Circle at the title screen.

Unlock Zeon/Deufo as a playable character:
Zeon/Deufo can be unlocked by completing Zeon's Story Mode (level 35 - 43).

Unlock Zofis/Coco as a playable character:
Obtain Red Card number 66 Brago VS Zofis.

Victoreem / Mohawk Ace:
Purchase all Mamodo cards.