Variations upon it are played at the beginning and ending of waves in a Mann vs. Machine, the bass line of this track is played, with a synthesized chromatic tone in D minor for each character. On the class selection screen in Mann vs. Machine Update, it is an extended version of the last part of ' The Calm' heard in the trailer and is one of 32 main menu startup themes. ' ROBOTS!' is one of the song titles featured on the official Team Fortress 2 Soundtrack, listed as track number eighteen.
