|This article is about a/an kaijin in Kamen Rider, the original series.|
Isoginjaguar (イソギンジャガー, Isoginjagā; 84) - A sea anemone/jaguar monster originally known as Katsurajou Yosuke who was turned into Gel-Shocker kaijin by General Black. He was able to swim, bite through rocks, emit poison from his back called Poisonous Water from his back that could melt human flesh, use the tentacles on his neck and mouth to strangle opponents, and teleport. After being defeated by Kamen Rider 1's Rider Point Kick and saw Katsurajou Maki calling him, he jumps then reverts to human form and still remembers his beloved daughter.
Kamen Rider: Seigi no Keifu
Super Hero Taisen
Another Isogin Jaguar was created as part of Dai-Shocker in the "super hero taisen" incident, led by Tsukasa Kadoya/Kamen Rider Decade, rivaling Captain Marvelous/Gokai Red and Dai-Zangyack. However, Rider Hunter Silva of Dai-Zangyack and Doktor G of Dai-Shocker overthrew their respective leaders and joined forces to destroy the Kamen Riders and Super Sentai. The two evil organizations united and faced off against the combined forces of the Sentai and Riders. In the battle, he was seen in several scenes fighting many riders and sentai, specificly MegaBlack, TimeGreen, ShishiRanger, Battle France, Kamen Rider Black RX, and Kamen Rider J. During the final battle, Ghoster was killed by Kamen Rider OOO's finishing attack with his Medajalibur, the OOO Bash along with Hades God Dagon, Scorpion Man, and Ghoster.
Behind the scenes
Isoginjaguar was designed by Shotaro Ishinomori, the creator of Kamen Rider Series and also who made the suit for this monster.