Flea Mutant

The Flea Mutant appeared in 1987 TV series called Kamen Rider Black. Flea Mutant (ノミ怪人 Nomi Kaijin) - A flea Gorgom monster.

Flea Mutant was used by Professor Hideomi Kuromatsu to inject his subjects with some chemical followed up with a steroid Kuromatsu used. Hayami was his first subject for him to be a fast racer, but it ended up turning him into a werewolf-like monster later on. Gorgom used the "Coward Hormone" to have Flea Mutant inject it into Kohtaro. Once Kamen Rider Black killed Flea Mutant with his Rider Kick, Hayami returned to normal.

Flea Mutant later appeared as one of the Phantom Mutants that assisted Dogfish Mutant.

Powers and Abilities
It has great jumping abilities and infect people with the Coward Hormone.