Hadouken is one of the signature attack calls from Capcom's Street Fighter series, most famously associated with Ryu and Ken. The move became a defining part of arcade fighting games and stayed recognizable across sequels, ports, and cross-media references. Online, the clip spread far beyond the games because even a one-second shout instantly signals a projectile attack or burst of power. It remains popular in memes and edits because audiences recognize it fast and connect it with classic competitive gaming.