MAP29: Outpost Omega is the first secret level of Doom 64 in numerical order, and the second chronologically (the first, technically, being MAP32: Hectic). Should this level be undertaken right after MAP04: Holding Area, this is where the player will first come across Mancubi and Pain Elementals. The level also contains the first of the strange artifacts known as Demon Keys which upgrade the Unmaker, which can also be found in this level. The music for this level is the same as MAP05: Tech Center.