Place this cue at the start of a co-op sequence, right before the helper's action appears on screen. Follow it with a pop sound effect for a collected item, then let the gameplay carry the next beat without another button layered on top.
Über diesen Sound
This is a very short 0.8-second effect tied to a Luma springing into action, heard through the Wii Remote speaker rather than the TV. It feels playful and helpful, like a tiny companion suddenly joining in. It comes from Super Mario Galaxy 2, where it triggers when the second player takes action.