I read Japanese well enough to transliterate hiragana, and those screenshots clearly show a "chisai tsu" less than half as tall as the "te" preceding it and the "sa" following. Accordingly, those five characters should be read as "te s sa i ga."
Which doesn't mean the article should be moved! As someone else pointed out, our article on the big guy is at [[Godzilla]], not [[Gojira]].
I think there's a difference: Godzilla was intentionally changed. It's not the same as the original Japanese, but it's not a *mistake* either. It didn't arise because someone confused two similar-looking characters.