Place this clip at the end of a boss-fight sequence, after building tension, and pair it with a Mario Jump sound earlier in the run for a clean retro callback. Follow it with a Vine Boom sound if you want the exit to hit as a final punchline.
About this sound
A very short voice clip of Mario saying 'So long, King Bowser!' in his high, cheerful voice, lasting just over a second and a half. It feels triumphant and playfully dismissive, like a victory wave after finally winning. The line comes from Super Mario 64, released in 1996, where it is heard when Bowser is thrown in a boss fight.