The Pyro is one of nine playable classes in Team Fortress 2, released by Valve in 2007 as part of The Orange Box. Always shown in a full suit and gas mask, the character never speaks clearly, which became a defining joke in trailers, comics and community videos. Short muffled clips were ripped from the game files and shared on forums, YouTube and soundboards during the 2010s, where the Enemy Spotted style callouts from shooters also circulated widely among players.