Shogojī

Shogojī (ショゴじい Shogojī) also known as ShoGoji is a fictional Japanese monster, that first appeared in the episode he is the original godzilla and grandfather to Godzilla-kun, Little and Minilla.

Godzilla Fest 2019 digest movie
ShoGoji came upon the Three Godzilla Brothers, who were investigating a strange medallion. Using his staff, ShoGoji determined it came from Infant Island. When Minilla and Little went to the island and found Mothra's egg there, they were attacked by the Three Dorat Brothers, who wanted to eat the egg. ShoGoji soon arrived and fought the Dorats, who combined into the three-headed King Ghidorah. ShoGoji transformed into his giant form and fought off the dragon, allowing the Three Godzilla Brothers to safely claim the egg which hatched into the larval Mothra.

MerryGoji: The Godzilla Who Came on Christmas Eve!
Santa ShoGoji brought the Three Godzilla Brothers along with him on his sleigh on Christmas Eve to deliver presents to children around the world. On their travels, they encountered Kamatte-kun.