Place it right at the reveal in a transformation edit, after the struggle and before the celebration, so the payoff lands as a clear turning point. Pair a buzzer for a failed attempt first, then let this clip mark the breakthrough, and follow it with a cheer for the finished result.
About this sound
This is the short Pokémon level-up jingle from the games, a bright melodic cue lasting about four seconds that plays when a Pokémon gains a level. It feels playful and rewarding, giving a small win a cheerful sense of progress. The cue comes from the Pokémon game series, with music credited to Shota Kageyama and Junichi Masuda.