This clip is a fan-made Mario impression rather than official game audio, with a performer imitating the plumber's famous catchphrase in an exaggerated, drawn-out shout. Mario, Nintendo's long-running mascot, is known for that cheerful here we go line, which is why the imitation reads instantly even without music or sound effects. On soundboards and in short videos, the stretched shout has become a shorthand for starting something with confidence and comic energy, especially before gameplay, races, and over-the-top entrances.