Phirasaurus Human appeared in 1971 TV series called Kamen Rider. Phirasaurus (ピラザウルス Pirazaurusu) (a.k.a. Phirasaurus Human (人間ピラザウルス Ningen Pirazaurusu)) – A piranha-dinosaur monster.
The first Phirasaurus had the human guise of a bus driver, and after using his death gas ability to kill the people in a bus it was discovered his poison was so potent it killed him as well. Phirasaurus was a project from Shocker commander Maya (マヤMaya), and she quickly looked for a stronger person to be altered.
The second Phirasaurus was pro-wrestler Noboru Kusaka (草鹿昇 Kusaka Noboru). He was captured, brainwashed and had his body altered, becoming the perfect Phirasaurus. The new Phirasaurus was able to match and defeat Kamen Rider #2 with his Ultra Kick. Brainwashed, Kusaka returned to the wrestling world as Satan Mask, and attacked his own brother when he tried to speak with him. He eventually faced Rider #2 in a wrestling ring. During the battle, he accidentally killed his commander Maya with his poisonous gas. In the end of episode 17, Kamen Rider #2 and Phirasaurus exchanged a Rider Kick and an Ultra Punch. Afterwards, both fell on the ring and Kusaka returned to human form, recovering his memories.
Powers and Abilities[]
The Phirasaurus Human's main ability, engineered from the original Phirasaurus, was releasing a poisonous breath. Appearing as a powerful mist, the Phirasaurus' poison was said to be able to kill a dinosaur in seconds. During its test run, the poison of the Phirasaurus Human was able to kill a bus full of humans, however, the poison was so potent it resulted in the Phirasaurus Human dying immediately after, thus a stronger human was needed to be modified. The second Phirasaurus, Noboru Kusaka, had an unbelievably strong body, able to shrug off rounds of a cannon, and special techniques called Ultra Punch and Ultra Kick, similar to the Rider Punch and Rider Kick.