But it looks like the large lizard's had a little work done during his off time – how does he get his scales to stay so perky, nearly 60 years after his film debut?
Turns out, it's taken quite a bit of work. The suits that Japan's Toho Studios used to bring Godzilla to life over the years morphed as he changed from a horrifying nuclear antagonist to the star of increasingly zany, family-friendly adventures in the 1960s.
The above video, by one Ryan Smith, shows those changes throughout the years. (His inclusion of the lamentable 1998 American Godzilla is ... incorrect.)
And, sadly, Smith does not include Godzilla's uncredited appearance in the 1988 John Cusack/Demi Moore vehicle, One Crazy Summer, which you can watch here.
If you're interested in a Biggest Loser-style comparison, here is the original trailer for Gojira, from 1954.
And here's a recent trailer from the new film, with a pretty revealing look at the G-Man at :25.
Welcome back, big guy.