A mutagenic substance called "Frenzy" was created by splicing an alien virus with piranha DNA. It caused any and all animals to become a perfected carnivore version of said infected creature. However, one became a kaiju, and this was Frenzy. Frenzy was originally a large swamp gator when he was captured and exposed to the "Frenzy". He grew to a massive size, his snout contracted, and he gained sentience, as well as apparent enlightenment. He became compact and lethal, but he became gentle, and humble. His back scales became spiky and sharp, as it became a massive, heavily armored, strong-jawed predator with a love for all life.