Age of Empires II, released in 1999 by Ensemble Studios, lets players trigger short voiced chat messages by typing numbers, and these numbered taunts became a language of their own in multiplayer. Number nine, a theatrical Oooh, is one of the most quoted, spammed in chat to mock opponents after a blunder. Clips of taunt spam spread through YouTube compilations and Twitch streams, keeping the game's voice lines alive decades later. It sits alongside other famous game voice lines such as Enemy Spotted and the bomb has been planted callout.