Nightmare Fuel / GAMERA -Rebirth-

• The Gyaos have been scary before, but this version takes it up a notch. Throughout the first episode, they're treated more as horror movie monsters than kaiju, dismembering and mauling people until getting big enough to assault the city in mass, eating any people they can find. The military finally manages to make some headway...before the fully grown adult shows up after tearing through an entire military fleet offscreen. The jets last a matter of seconds.
• Guiron has a brand new design that's terrifyingly agile and maneuverable. It also appears to have no visible mouth...until its entire *face* splits open in three hinges with the jagged seams of its face forming "teeth".
• The kaiju eat people...but they have a special taste for children. Even worse those that created the kaiju fed children to them.
• The S-Gyaos is a horribly-mutated Gyaos that has gotten so large and deformed it can hardly even move and is unable to fly. Yet this doesn't make it any less dangerous, as it was engineered to serve as a vector for a virus that would allow the creators to get Gamera under their control.
• Briefly, Gamera is reverted to his original, destructive programming, becoming a hostile, violent creature. His skin turns jet black and his eyes glow a bright red like the other enemy kaiju, and for a moment he looks prepared to kill the child protagonists. Thankfully, he snaps out of it, seemingly out of his sheer willpower.
• This is the first time in the franchise as a whole that we have seen human villains with no redeeming qualities that also are taken as a serious threat. Dr. Sugawara was brainwashed by Zigra, and same for the scientist in the Dark Horse comics (this time with Viras holding the reins). Ayana Hirasaka was a traumatized and mentally unstable teen who was lashing out at Gamera in retaliation (and it’s implied that Iris may have been manipulating her as well). The two Atlantean cultists from the same film aren’t taken as a serious danger, and neither is the greedy businessman, Onodera, from Gamera vs. Barugon or the Obstructive Bureaucrat government officials of the Heisei Trilogy. The Eustace Foundation, on the other hand, are portrayed as completely and wholly evil. Their plan for mass genocide isn’t even a Well-Intentioned Extremist thing for population control- they just want to hoard all the world’s resources to themselves and rule over the shattered survivors unopposed.