When You Start the game you automatically have Tristan Taylor, Tea Gardner, Yugi Muto, Joey Wheeler, and Bakura Ryou. When You defeat each of them two times then you unlock Espa Roba, Mako Tsunami, Rex Rapter, Weevil Underwod, and Mai Valentine,they are harder. When you defeat each of them3times you unlock Umbra and Lumis, Arkana, Rare Hunter, Strings, and Marik Ishtar,they are even harder! When You defeat each of them 4 times you unlock Yami Bakura, Ishuzi Ishtar, Kaiba Seto, Shadi, and Yami Yugi,they are yet even harder.! When you defeat them each 5 times you unlock Pegasis, Grandpa, and Simon. When You Defeat each o them 6 times each you beat the game!

Note: To get to stronger or weaker opponents press R or L.