Spooky Boo Swamp is the second track of the Star Cup of Mario Kart 9.
The player begins at a marsh dimly lit by the moon and several lanterns. The race starts through a brush of weeds containing a navigable path. This leads out to a murky swamp, which the player can traverse via a series of boostie-containing lily pads. If a lily pad is missed, the player simply drops into the purple waters. This area is not hazardous, although it contains several Bone Fish. Either way, this will lead out to the final stretch of land, containing multiple splotches of hazardous mud and Skeletal Piranha Plants.