The 'KANTOOO' meme originates from a viral reaction video by YouTuber JammerProHD during the 2018 announcement of Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!. Upon realizing the game was returning to the Kanto region once again, JammerProHD let out an incredibly loud, high-pitched scream of 'KANTOOO!' that became an instant classic in the Pokémon community. The meme is used to represent overwhelming excitement, mock the franchise's heavy reliance on the first generation of Pokémon, or simply to express chaotic energy in response to any repetitive news. It has since become a staple reaction for gaming announcements where fans feel a sense of both hype and comedic frustration.