On page 8, the scene in his mind looks like this.
~~きた or キターーーー!! is slang for something that's been long-awaited which has arrived. It also means "Yess!!!", like, YASSS!! in recent years
The next scene on the left, he does a traditional folk dance with the "aso-re". I find that it helps to look closely at the text, the context and the overall intent of the scene to figure out what's going on. I would say that something like this would throw some beginners off if they misread it as "a, sore" as in "oh, it's that" if they don't notice the tiny っ
I localized it a bit with the "ole" soccer chant. I'm not sure if the folk dance gets picked up immediately by you guys otherwise.
Then he starts waltzing with his appetite. The register changes...he uses a fancy kanji for egg, he ups the politeness of his speech with -masu form and お in front of stuff. He's gradually getting more and more classy and verbose.
and finally, the font and style in the text box changes to a fancy font, and the "..." we always see at the end of the text becomes a dash. He's glittering and we see the glass panels glow-up the surrounding background.
So all in all, a very fun chapter with stylistic choices.