MAP01

A level called MAP01 appears in each of several different games and megawads:


 * MAP01: Entryway in Doom II
 * MAP01: System Control in TNT: Evilution
 * MAP01: Congo in The Plutonia Experiment
 * MAP01: Staging Area in Doom 64
 * MAP01: Sanctuary in Strife
 * MAP01: Sunset in Alien Vendetta
 * MAP01: The Furnace in Community Chest 2
 * MAP01: Insurgents in Deus Vult
 * MAP01: Paula's Prison in EarthBound Doom
 * MAP01: Into the Gate in Hell Revealed