Jellyfish is one of Rita Repulsa's monsters. She sent him to fight the Rangers. He was defeated by the Megazord.
also best monster from seen costume with Tommy in during "Karate Club Video" to made by classic episode of MMPR "Reign of the Jellyfish" in during Zyu2.
Note:also Jellyfish was puted the umbrellas with his antennas in during fight against the Power Rangers expect as Black Ranger was used after defeated in the best of Zyuranger monster Spidertron from "Itsy Bitsy Spider", also, a used monster japanese version of Zyuranger monster of Bandora as Dora Tarantula, to made created best one of Zyuranger used episode "The Park Where Demons Dwell".