Zaririns do not attack Sonic unless the player gets close to them, upon where they simply swim into him. In high corridor sections with larger Air Bubbles, Zaririns lurk in each corner, where they can pop the Air Bubble if the player gets close to them. Despite their charging attack, they are easily defeated with the Spin Jump. Like many other Badniks in the game, Zaririns do not contain any Animals.
"Zaririn" is a variation of the word "Zarigani" (ザリガニ,"Zarigani"?), meaning "crayfish" in Japanese.