A composite Godzilla is legitimately absurd and insane because there's so many wildly different versions with outright completely different origins and powers and even designs. The original Godzilla, Showa Godzilla, Heisei Godzilla, Godzilla Earth, Godzilla Ultima and Shin Godzilla cannot be logically or coherently amalgamated. Gemstone Godzilla was literally some fan project where Toho actually hired the guy to make official short movies and retroactively retconned it to be Godzilla Junior and he has five fingers and radioactive punches and kicks. Does HE get composited even though he's a fan project that became an official product but as Junior?