Sisyphus Prime is a Prime Soul boss in the fast-paced indie shooter Ultrakill, inspired by the Greek myth of Sisyphus. His theatrical voice lines from the boss encounter were clipped and shared across gaming communities, with Be Gone becoming a favourite for its short, commanding delivery. Fans compile his full lines, remix the shouts into edits, and use them outside the game as exaggerated reactions. Its popularity lasts because the performance feels both intimidating and absurdly dramatic for everyday situations.