Place it at the start of a Mario clip, just as Luigi joins the action, then follow it with the Okay Let's Go sound to signal the game is beginning. That one-two order keeps the reveal clear before the play starts, and suits a Luigi-focused edit from start to finish.
About this sound
This short spoken clip announces that Luigi is now playable, lasting just over four seconds. A clear, upbeat voice delivers the line like a game unlock, making it feel like a small celebration for the green-capped brother stepping into the spotlight. It feels playful, welcoming and a little triumphant, as if a long-waited favourite has finally stepped forward.