Hadoken is best known as the signature projectile attack from Capcom's Street Fighter series, most famously used by Ryu and Ken. The voice clip became widely recognized through arcade play and home console releases, then spread into internet culture as a shorthand for energy blasts and fighting-game references. It still shows up in memes, gameplay edits, and comedy videos because the sound is brief, dramatic, and instantly tied to one of the most famous move calls in gaming.