Zalga is Ronmark's ex girlfriend from the episode Night of the Cactus! She gets back together with Ronmark at the beginning of the episode, but quickly dumps him again for being a massive clownbag. At that point she is kidnapped by the Cactus Monster who falls in love with her. After being rescued by The Aquabats, she helps them develop the cure to the cactus' space infection and ultimately is the one to destroy the monster.