Some leaked show bible/lore/guide/press kit pages for Learning with Pibby, these were posted on 4chan /co/ board by someone who was had apparently tried to audition for a voice role in the show.

Also I want BunBun to be the secret final boss in #WarnerBrosMultiversus now.

Just imagie that on harder difficulties, after the player defeats Darkseid in Adventure/Story mode, the darkness suddenly appears and not only do you have to fight corrupted versions of all you past opponents, but also Bun Bun as he spews toxic internet slang at you also.