|This article is about a/an monster in Power Rangers S.P.D.|
Sinuku is snake-like alien scientist. After escaping from KO-35's satellite prison thanks to Broodwing, Sinuku heads to Earth to meet with an old friend - Dr. Reiss, who has the control to some demagnetrons. He is intercepted by the S.P.D. Rangers who bring him down in his giant robot using the Delta Squad Megazord. The Rangers then finish the job with the Canine Cannon. Sinuku is later cloned by Slate and Morgana, but the clone is destroyed by the S.P.D. Battlizer.