Turbo Duel

A Turbo Duel (Riding Duel in the Japanese anime) is a type of Dueling performed using "Duel Runner" motorcycles in Yu-Gi-Oh! 5D's (in the Japanese version as "D-Wheels"). This type of Duel can be activated without the consent of the opponent. To start a Turbo Duel, at least one player has to activate "Speed World". The other player's "Speed World" card will then be automatically activated.

"Speed World" is a unique Field Spell Card, which prevents the activation of any Spell Cards, apart from "Speed Spell" Spell Cards.

To activate a "Speed Spell" Spell Card, you must meet the requirements on a specific card. In most cases, this is simply having enough Speed Counters, though there are other requirements based on the numbers of counters you or your opponent have.

During each of either player's PStandby Phases, 1 Speed Counter is placed on both player's "Speed World". Also, there are cards which can either decrease or increase the number of Speed Counters on "Speed World". There are even cards that can even prevent either player from accumulating Speed Counters. When you take damage, for each multiple of 1000 damage you take, you lose 1 Speed Counter.