All of these roms are in Japanese.

JAP ROMS:

All Yu-Gi-Oh! roms down at the moment.

Bahamut Lagoon (SNES)

Beyblade (GBA)

Capsule Monsters (GBA)

Duel Monsters (GBC)

Duel Monsters 3: Tri-Holy God Event (GBC)

Duel Monsters 4: Yugi Deck (GBC)

Duel Monsters 4: Kaiba Deck (GBC)

Duel Monsters 4: Johnouchi Deck (GBC)

Duel Monsters 5: Expert I (GBA)

Duel Monsters 6: Expert II (GBA)

Duel Monsters 7 (GBA)

Dungeon Dice Monsters (GBA)

Golden Sun 2 (GBA)

Gundam Wing: Endless Duel (SNES)