"For the rebirth of the Godzilla legend, Toho decided to once again portray the King of the Monsters as an evil creature. Thus the 1984 Godzilla would possess the general appearance of the 1954 Godzilla (from Godzilla, King of the Monsters) and the facial expression of the 1964 Godzilla (from Godzilla vs. the Thing), the latter incarnation being arguably the most evil-looking version of Godzilla up to that time. The 1984 Godzilla suit therefore possessed features previously seen only on the 1954 and 1955 (Godzilla Raids Again) suits; fangs, four toes, ears, staggered rows of dorsal plates, and a rough underside of the tail. The detailing in the legs for the 1984 Godzilla was very good, but the musculature for the chest and shoulders were less well-defined, thus diminishing the costume’s overall image of power. The dorsal plates were very well-detailed, but also appeared to be more numerous compared to the 1954 and 1955 costumes. The largest dorsal plate was placed at waist level, which had not been done before or since. The tail was longer than any previous version, the neck was short and the head was fairly large in proportion to the body. The 1964-style eyes, with red-brown irises, looked suitably evil. The 1984 costume also boasted a new feature for a Godzilla suit; the upper lip could curl up in snarl. It was so advanced, one might think it could even read a 3D barcode."
January 1, 1970
https://en.wikiquote.org/wiki/The_Return_of_Godzilla