Baldi is the stern teacher from the indie horror game Baldi's Basics, a character long reused in fan edits and short-form memes. Rainbow-themed versions lean into that reuse, swapping the game's tense classroom mood for bright, exaggerated visuals that suit TikTok's fast editing style. The clip remains useful because it is short, instantly tied to a recognisable character, and flexible enough for classroom jokes, gaming edits and absurd transformations without needing context from the original game.