Gynamite

Gynamite appeared in 1988 TV series called Kamen Rider Black RX. Gynamite is a crab-like monster that can mimic humans, has a pincer claw for the right arm, claws for the left hand, and can spew acidic bubbles from his mouth. He is sent after a girl named Tomoko, who is half Crisisian on the side of her father and about to awaken her powers. Though Kotaro interfered, Gynamite assumes the form of the girl's father to get her, only she uses her Crisisian powers to knock him into his true form as Kohtaro arrives and becomes RX to fight him, chopping his pincer off before the monster used his toxic breath on him. Gynamite tried again to take the girl who used her Crisisian powers on him. RX used his RX Kick on Mite before he was destroyed by RX's Revolcane.