Yu-Gi-Oh! World Championship 2008 is a video game, and part of the World Championship series. It was developed and published by Konami released for the Nintendo DS on November 29, 2007 in Japan.
The game contains most cards present in the OCG up to and including the "Gladiator's Assault" Booster Pack set and some cards that at that at the time were TCG exclusive. It also features online Dueling with friends via the Nintendo DS Wi-Fi Connection.