Place it right at the peak of a reveal, after the setup has finished and before any reaction shot. Open with the Pop Sound Effect for the visual change, let this clip carry the approval, then close with the Inception Horn Sound Effect to underline the reveal.
关于此声音
Mettaton stretches a single “Oh yes” across about four seconds, his voice rising with showy, theatrical flair. The delivery feels flamboyant, confident and gleefully over the top, like applause for a moment that barely needed it. It comes from Undertale, the 2015 role-playing game by Toby Fox, where Mettaton is a glamorous television host.