From the Super Mario Wiki
Tart Top is a battle course in Mario Kart DS. It is a large circular field covered by many pastry confections like green and red heart-shaped jellies, cream puffs and berries. The only Item Boxes are located high up in the air, accessible only when racers use the Dash Panel covering completely the cream mountain in the center. Hitting any one of the creme puffs throughout the course may cause icing to splat on the player's screen, much like the Blooper item, though not nearly as much. If a racer hits a strawberry at a certain angle, he or she can lose a balloon.
Peach battling on Tart Top which resembles Cookie Land.
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