The clip was extracted from the files of Super Mario Galaxy 2, the 2010 Wii sequel, where it is stored as CS_IN_DISPLAY_2P inside the SpkRes archive. In the game's Co-Star mode a second player uses another Wii Remote to collect Star Bits and help Mario, and this cue was routed to that controller's speaker rather than the television. Ripped game files later circulated among Nintendo fans and soundboard users, who kept using the distinctive Luma cue as a shorthand for a small helper joining the action.
About this sound
Short Luma attack sound from Super Mario Galaxy 2 played through the Wii Remote when player two joins in, used for cute Nintendo game edits and memes.
This is the brief sparkling chime a Luma makes when the second player takes action in Super Mario Galaxy 2. Lasting less than a second, it is a bright, twinkling burst with a quick upward sweep that feels like a tiny star springing into motion. It never plays from the television speakers in normal gameplay, coming instead from the Wii Remote speaker, which gives it a small, close and slightly tinny quality. Listeners instantly read it as playful and helpful rather than aggressive, capturing the Luma's cheerful assist.