I'm telling you man, this new Yu-Gi-Oh series is pure sicness. In this series, there is 5 dimensions of dueling. When they on them bikes, it's called a speed duel. Not only do they duel, but they race around a track at the same time. Each turn they get a speed counter which allows them to play certain speed spell cards within that level. It's really great, everything that Yu-Gi-Oh GX should've been (even though I like that show as well, LOL).