Place it at the peak of the transformation, just after the tension builds and before the action resumes. Follow it with an Anime Wow for the reaction shot, then a Vine Boom as the new form lands, and finish with a Punch when the first blow connects.
Über diesen Sound
This seven-second clip is Goku roaring in Japanese as he taps into Ultra Instinct, his voice rising through effort and strain into a raw, unrestrained cry. It feels desperate and triumphant at once, like a fighter pushing past his limit when defeat looks certain. It comes from Dragon Ball Super, voiced in Japanese by Masako Nozawa during the Tournament of Power arc.