As strange and horrifying as Shin Godzilla's four previous forms might be, the true controversy surrounding this film relates to the creature's fifth form. Mankind manages to halt Shin Godzilla's reign of terror by injecting him with a coagulant that freezes the giant monster into a colossal statue, coincidentally freezing him during his transformation to form five.
What follows is an ending straight out of a Lovecraftian horror story, in which it's revealed that a horde of nightmarish humanoid creatures was sprouting from Shin Godzilla's tail, apparently being the next stage in the creature's evolution. These terrifying half-human half-kaiju creatures are somewhat controversial among fans of the "Godzilla" series, as some franchise purists believe that splitting the monster into an army of smaller abominations is too far-fetched and strange for the "Godzilla" universe.
"The idea of eldritch Humanoids spawning from Godzilla is outlandish," wrote @diowrld4118 on YouTube, saying that "Shin Godzilla" should have introduced another massive kaiju for the King of Monsters to take on. "Still a major controversy on the monsterverse cause if you take the 'giant' out of the 'giant monster', it's just a regular everyday media monster," wrote @eggseed6543. On Reddit, u/Dekunetsuo357 touched on how the film and titular character leaned too much into the horror realm. Meanwhile, u/The-Jack-Niles wrote: "Shin feels nothing like Godzilla to me, it's just a monster that comes to look like Godzilla."
