I feel Earthbound, the classic SNES RPG where Ness debuted, is a masterclass on NPC dialogue. The dialogue is so well crafted it makes you eager to talk to each NPC you come by, knowing even if they don't give you relevant information they will give you a silly hot take on the world they occupy. It makes everything so much more rich. The Rabbit Girl referenced in the article is from Undertale by Toby Fox, who cut his teeth in gamemaking creating Earthbound mods. I suspect this is why his characters in Undertale follow a similar whimsical nature to this early influence of his. Undertale borrowed a lot from Earthbound's character construction.

I've been playing through Earthbound over the last few weeks and consistently find the writers and localization team put in just the right extra 10% to turn a "bleh" interaction into one you think about for days to come. For example, in a nod to the greedy, one character grumbles about the loan he gave to your family and now he "lives in poverty" - all while standing in the biggest house in the game.

Later on, a key item with key information gets shipped to your character via the equivalent of Fedex "Neglected Class." A rumpled delivery man eventually shows up and tells you "Anyway, he said... well... uh... I forgot. Yep, I forgot... actually I forgot the stuff I was supposed to deliver, too. I think it was some weird machine to make trout-flavored yogurt. Yeah, I forgot it at the desert... I'm not going back that way, so don't ask me to get the package... I mean, it's your package, right? So YOU go get it! Go on, get out of here." You then have to schlep to another part of the game to recover the package the delivery man decided just wasn't worth his time [0]

If you've played the game and want to figure out why some of the quirkiness just WORKS, I would recommend the later parts of Tim Roger's piece from a decade or so ago [1].

[0] https://youtu.be/EIoLcNLyd0g?t=27902

[1] http://archive.is/fMD7F (edit - huh, yeah this article has NOT aged well at all I should have taken a closer look since it first was released long ago, but I'll leave it here for the sake of discussion & derivative comments).