Yu-Gi-Oh!: World Championship Tournament 2004

The Good
Features 1,138 cards.

The Bad
The AI opponents cheat. They will not attack a monster that you have face-down in defense mode if that monster has more defense points than the opponents monster's attack points. They also miraculously draw the perfect card in certain situations like Monster Reborn and Raigeki. The higher-tier opponents aren't restricted to the limited and semi-limited list, which leads to duels that feel unfair when you lose.

It takes forever to unlock opponents and also some are very cryptic such as having a very useful card in your trunk rather than logically having it in your deck and one opponent even requiring you to have only monsters in your deck.

Most opponents use the same cards even though as stated before that there are more than 1,000 cards in the game which makes dueling very repetitive. They managed to screw up Dark Magician's, Dark Magician Girl's, and Magician of Black Chaos' names as Dark Spellian, Dark Spellian Girl, and Spellian of Black Chaos, respectively. This is inexcusable because these three cards are some of the most iconic monsters in the game.

There is no password function to type your real-life cards to add to the game like in previous games. Characters don't talk when you duel them like in previous games which makes the game feel bland.

The Bottom Line
If you have to play a Yu-Gi-Oh! game on the GBA, don't let it be this one.