Gigan first appeared in the universe of Godzilla in the titular film, Godzilla Vs. Gigan, which was released in 1972, with the fiftieth anniversary of the first appearance taking place this year.

For those of you unfamiliar with Gigan or Mecha Godzilla, the creatures are well-known amongst kaiju lovers. The former made their debut in Godzilla vs Gigan a la 1972.