Yu-Gi-Oh! World Championship 2004 was the first game in the World Championship series to be released. It was released in February 2004 for the GameBoy Advance.
Opponents[]
Level 1[]
Level 2[]
Level 3[]
- Mai Valentine
- Bandit Keith
- Joey Wheeler
- Maximillion Pegasus
Level 4[]
- Arkana
- Rare Hunter
- Umbra and Lumis
- Strings
- Odion
Level 5[]
- Ishizu Ishtar
- Marik Ishtar
- Seto Kaiba
- Shadi
Level 6[]
- Simon
- Yami Bakura
- Yami Marik
- Duel Computer
- Yami Yugi