These goop-spewing plants are often your first encounter with a boss-like enemy. Strategy: Wait for the Piranha Plant to open its mouth, then spray water directly into it until it inflates. Once inflated, it will fall over, leaving a patch of goop. Ground pound the goop to deal damage. Repeat this process three times to defeat it. Be careful of the goop it spits out!

While the Petey Piranha boss in Super Mario Sunshine requires internal water saturation, his appearance in Mario Kart DS focuses on obstructing racers with vision-obscuring ink.
While Super Mario Sunshine requires water to defeat these plants, Mario Kart Tour reimagines them as obstacles that You can safely bypass using a well-timed Mega Mushroom.