Underground Pass is a music track that is unlocked during the Underground Pass quest. It is unlocked in the second area of the Underground Pass, and in the pitfall trap underneath the grid in the first area.
- Although the track was released with the Music Player, it was not unlockable by players until the Underground Pass was added to Runescape 2 on 15 April 2004.
- Prior to an update on 26 October 2004, this track was called Upass1.
- According to data crowdsourced via RuneLite, approximately 97% of players unlock the track in the grid's pitfall trap, while 3% unlock it in the Underground Pass second area. (i.e. 3% of players clear the grid on their first attempt)