The City Escape level music ("Escape from the City") actually has two versions that play during the level that sound nearly identical. The first one is the one that plays when the mission starts and features a 10 second instrumental opening and a radio directive for GUN units to capture Sonic just before the lyrics kick in, while the second version plays after Sonic gets an item in the stage and the background music restarts. The latter version is distinguished by the singer adding a "WOOOO! OH YEAH!!" vocalization at the 10 second startup of the song before the regular lyrics start and the song continues normally.