Watermelon Tourmaline is a giant, pufferfish-like monster and the main antagonist of the Steven Universe episode, "Beach Party".
In "Beach Party", Watermelon Tourmaline attacks the Crystal Gems, deflecting all of their attacks and literally blowing Garnet further into town. Amethyst then transformed into a baseball bat and knock it across the ocean.
It later turns up during the Gem vs. Pizza Family Volleyball game, endangering all of them. Nanaphwa and Steven then work together, organizing the others into helping and they ultimately defeat the creature by popping it on a giant shard of glass.
Watermelon Tourmaline is now currently inactive and bubbled within the Temple basement.
|Steven Universe Villains|
Great Diamond Authority | White Diamond | Yellow Diamond | Blue Diamond | Pink Diamond | Homeworld Gems | Peridot | Lapis Lazuli | Jasper | Yellow Diamond's Pearl | Blue Diamond's Pearl | Eyeball Ruby | Navy Ruby | Holly Blue Agate | Aquamarine | Topaz | Robonoids | Fusion Gems | Sugilite | Malachite | Unknown Quartz Fusion | Gem Monsters | Centipeetle Mother | Gem Cave Creature | Big Bird | Watermelon Tourmaline | Ice Monster | Invisible Gem Monster | Lighthouse Gem Monster | Slinker | Crab Gem Monster | Great North Gem Monsters | Cluster | Bismuth | Marty | Frybo