Huffing and Puffing Trophy in Split Fiction

It's not the big bad wolf you have to worry about

Silver trophy

In the Farmlife side story (Chapter 2: Neon Revenge, Streets of Neon), after Goin' Whole Hog. Bookworms says where it starts.

In Farmlife, Mio and Zoe are pigs, and Mio can shoot forward on a rainbow fart with R2. Further on in the side story, after another barn, a pig hides in a stone house ahead of you. Mio goes round to the back wall, marked with a yellow circle, and farts into it to knock the house down.