It’s weird though, he goes so far as to include both variants of the 64 suit, but then skips on at least one the variants of the 73-75 suit. And I can’t tell if he skips either the 75 or the 84 suit. Basically after the tail slide for 73, there’s one more Godzilla that might be the 74, 75, or 84 (not sure which) then the next line starts with the 89.
Also, he skipped 1969, Godzilla’s revenge.
He also missed GxMegaguirus and GxMG (he’s only got the scarred version from Tokyo SOS).