Spamton first appeared in Deltarune Chapter 2, released in 2021 as part of Toby Fox's follow-up to Undertale, where he is a desperate former salesman turned secret boss who begs the player for help becoming famous. His strange bracketed speech, glitchy delivery and catchphrases quickly made him a fan favourite, and clips of his voice spread through YouTube animations, TikTok edits and meme videos. Fans still use him to represent greedy deals, broken advertising and sudden chaos, keeping his manic pitch recognisable years after his debut.