Baby Peach first appeared in Mario & Luigi: Partners in Time in 2005 as the infant form of Princess Peach, before becoming a regular playable racer in Mario Kart Wii and later Mario spin-offs. Her distinctive baby voice lines, recorded as short giggles and calls, were ripped from the games and shared on soundboards and in fan edits. Because the character is closely tied to Nintendo's Mario series, the clip spread through gaming videos and cute edits, and it remains popular for lighthearted reactions.