From the Super Mario Wiki
Figure-8 Circuit is a race course in Mario Kart DS. It's the first race course of the Mushroom Cup, as well as the location of the awards ceremony held after any cup. The race track resembles an 8. It is comparable to Luigi Circuit of numerous other Mario Kart games, as simple, straightforward, and free of gimmicks.
Missions 1-1 and 2-2 take place on this circuit. The first requires the player to pass through 5 gates in order and the second requires them to collect 10 coins.
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