01/ENTRYWAY: Exit switch


02/UNDERHALLS: Exit switch


03/THE GANTLET: Exit switch


04/THE FOCUS: Exit switch


05/THE WASTE TUNNELS: Exit switch


06/THE CRUSHER: Exit switch


07/DEAD SIMPLE: Exit switches


08/TRICKS AND TRAPS: Exit switch


09/THE PIT: Exit switch


10/REFUELING BASE: Exit switch


11/CIRCLE OF DEATH ('O' OF DESTRUCTION): Exit switch


12/THE FACTORY: Exit portal


13/DOWNTOWN: Exit portal


14/THE INMOST DENS: Exit switch


15/INDUSTRIAL ZONE: Exit portals


16/SUBURBS: Exit portal


17/TENEMENTS: Exit portal


18/THE COURTYARD: Exit portal


19/THE CITADEL: Exit portal


20/GOTCHA!: Exit portal


21/NIRVANA: Exit portal


22/THE CATACOMBS: Exit switch


23/BARRELS O' FUN: Exit portal


24/THE CHASM: Exit portal


25/BLOODFALLS: Exit portal


26/THE ABANDONED MINES: Exit portal


27/MONSTER CONDO: Exit portal


28/THE SPIRIT WORLD: Exit portal


29/THE LIVING END: Exit portal


30/ICON OF SIN: Destroying an enemy ends the level


31/WOLFENSTEIN: Exit switches


32/GROSSE: Exit switch