It used to be very popular in Asia, especially in Thailand but since Yoshiki Takaya, the author of Guyver, stopped writing it for many years, Guyver is known by only readers who are more than 30-35 years old. I would say it is not popular in Thailand anymore now. Anyway, Ithnik many Thai middle-aged people bought of the Gigantic from them that's why they're presenting and continuing the Guyver figure line in Bangkok.
The figures are all articulated like the recently released one except for the 1/2 guyver bust. They all come with LED light parts.
Only Gigantic 1 that was released. The others are prototypes. http://sanken.co/ here is the studio who produces this guyver line.