Locator Card
A Locator Card, known as a Puzzle Card in the manga, is a clear card with a prismatic coating containing a small portion of a map of Domino City. There was one given to each participant of the Battle City tournament.
Duelists were to wager their Locator Cards in Duels. The eight duelists to collect 6 Locator Cards were to be the finalists. If a player ran out of Locator Cards, they were disqualified. In the manga it was explained that there were exactly 48 Puzzle Cards issued, each containing one of the 48 components of the map in a 6x8 grid.
By stacking the 48 cards a map of the city would be formed. In the manga, stacking 6 cards would at least create a partial map and a light would shine on one spot indicating the location of the finals. In the anime, by inserting 6 cards in a Duel Disk a holographic projection of the location of the finals would be produced.
