Who's Hellos Are These, Anyway?

In a quirky, bustling town where greetings have a life of their own, you're an aspiring 'Hello Expert!' tasked with identifying and cataloging the various unique hellos that characters in your world use. However, you're soon tangled in an elaborate conspiracy involving a secret society that believes the "right" hello grants you superpowers. Navigate through absurd situations, gather bizarre greetings, and decipher which hello belongs to whom, all while avoiding a rival Hello Expert who'll stop at nothing to sabotage your quest. Will you crack the code of the greetings before the ultimate showdown?