First Appearance: Episode 10 "The Mysterious Dinosaur Base" (謎の恐竜基地, Nazo no Kyōryū Kichi) Subtitle: Frilled Dinosaur (えりまき恐竜, Erimaki Kyōryū?).
Jiras (ジラース, Jirāsu?) (alternate spelling "Jirass," alternate name "Kira") is a fictional kaiju. The suit of the monster is actually a loosely disguised Godzilla suit, the same one used for the first Ultra Kaiju, Gomess. In the episode he was created by Nikaido, a mad scientist, and later faced and was defeated by Ultraman/Urutoraman. Jiras is 60 meters in height and 33,000 tons in weight (with body and frill combined).
Read more about this topic: List Of Ultraman Monsters