Tohl Narita: “This is a kaiju in the form of leaves put together and it is asymmetric.”
I think Keronia was an attractive kaiju in its own way, while the design itself may not be so appealing by today’s standards, with the impressive fight with Ultraman and the idea that a “plant” life form species on the earth, instead of an alien, challenged humanity after gaining the intelligence and ability that grew to the level that could far surpass the human race.
I find how the asymmetry made the design attractive even moderately in this case indicates it is the work done by Narita who was an excellent sculptor as it would have looked too simple and plain otherwise.
The human-sized Keronia who appeared from the closet was extremely creepy while the actor seems to have nearly tripped and fell down behind the scenes after he ran out of the room probably because he had to run with the costume’s huge head unproportional to his body hardly held in the proper position and with the poor visibility through the head.
It seems that Ryosaku Takayama wrote in his kaiju sculpting diary that he made about 35 pieces of the leaf-like surface and that it took a lot of work so that he had to make a particular box to dry them with two infrared lamps set on it while working throughout New Year holidays pressed for sculpting kaiju costumes to meet the deadlines.
The head of the human-sized Keronia was also sculpted by Takayama along with the head of the giant Keronia although the giant Keronia costume also had its head and body separated to be worn. Hiroko Sakurai who played Akiko Fuji attacked by the human-sized Keronia says she was so frightened, while acting, by the scene because of the situation of the plant human suddenly showing up from inside the closet.
Looking at the expressive actions of Ultraman performed by Bin Furuya, it makes me feel enthusiastic teamwork of the staff on the set joining forces to try to make the show more attractive by featuring impressive fights between Ultraman and a kaiju as explicitly shown by the scenes, for example, where Ultraman smashed out of the building in the sequence of Hayata turning into Ultraman (I would really sympathize with the building owner if it were real) or Ultraman sort of somersaulted on the ground while fighting with Keronia, including “Ultra Attack Beam” Ultraman unexpectedly fired at the plant human his Spacium Beam didn’t work on.
At any rate, it is hilarious to see the baby Keronia set to be flammable and useful as a household fuel. The appearance of Shoji Nakayama as Dr. Ninomiya who would play Captain Kiriyama in “Ultraseven” made this episode even more impressive.