Zogameron (ゾウガメロン Zōgameron?, 25): A tortoise monster. His wife's name is Elsa (エルザ Eruza?). Employed a sadistic plan to have Tsukuba Hiroshi take his son Bongo into his confidence, then use his son to assasinate Sky Rider. He can tuck his body into a stony, immobile shell form and then transform into a giant rolling form to crush his enemies. He is immensely heavy. Ari Commandos in his command attack in zorbing formations and use grenades. Destroyed by Skyrider's Sky Kick.
He was later resurrected as part of Kaijin the Second Generation Corps (怪人二世部隊 Kaijin Nisei Butai?, 27-28). They wore yellow scarves and were destroyed by the 7 Riders.