Pikachu is the mascot of the Pokemon franchise, debuting in the 1996 video games and the 1997 anime series, where the character is voiced by Ikue Otani. This particular clip is a fan-made 'by me' impression rather than official audio, the kind of homemade recording that fills user-generated soundboards. Creators keep using these rough imitations because they feel personal and funny, adding a layer of playful fandom to memes, edits and reaction videos.