|This article is about a/an monster in Kamen Rider, the original series.|
- enhanced Ratcondor ('改造ネズコンドル Kaizō Nezukondoru, 90) - An enhanced form for Ratcondor equipped with a new weapon to help with Ratcondor's minor loss to Takeshi Hongo. He was destroyed by Kamen Rider 1's Rider Lunar Kick.
Ratcondor first appeared to fight Kamen Rider 1 while he was engaged with Canarycobra. Ratcondor offered his co-operation in taking down Kamen Rider, but Canarycobra insisted that he could do it alone. Watching as Canarycobra used his new steel cobra arm to restrain that of the Rider, Ratcondor was shoved aside by Kazuya Taki who set Kamen Rider free before holding Ratcondor off. However, as Taki was a mere human with no cybernetic modifications, Ratcondor was eventually able to overpower him and, after Canarycobra was destroyed by Kamen Rider 1's Rider Lunar Kick, used his strength to hurl Taki into the sky at an incredible speed only for Kamen Rider 1 to catch him.
He can fly, turn into a rat, has a scythe blade on each hand, and his fangs carry a bacteria that can turn people into infected rat-like creatures. His enhanced form has a beak with a stronger strain of this bacteria that also causes blindness.