Yu-Gi-Oh! Ultimate Masters Championship 06 features over 2,000 cards and is the official game of the 2006 Yu-Gi-Oh! World Tournament. New modes, including "Limited Duel" and "Duel Puzzle," are designed to test a player's dueling skills in a variety of ways from playing with a limited deck, to completing a list of objectives in a single turn. "Theme Duel" requires the satisfaction of specific conditions to win, such as activating ten traps in a battle or causing 10,000 or more points of damage in a single fight. The game includes all of Upper Deck's structure decks, including "Dragon's Roar" and "Spellcaster's Judgment," Yu-Gi-Oh! GX cards, and three exclusive trading cards. The new cards are intended to preserve the game's classic elements of traps, monsters, and spells, but allow more offensive and defensive tactics and provide accurate simulation.