Waluigi was introduced by Nintendo in Mario Tennis in 2000 as Wario's partner and Luigi's rival, quickly becoming known for his lanky design, purple outfit and theatrical wah voice. His knockout and death cries from Mario sports and party games have been clipped and reused online for years, separate from full gameplay. This short version circulates on soundboards and in meme edits because the cry is instantly identifiable and works without context. It remains popular for game over jokes, especially in Nintendo fan videos and streams.