Add secret room.

Change the teleporter corridor style and make the easter egg easier to find.

Fix the nodrop and add an easter egg.

Make a teleporter to upstairs and turn into a space map.

Fix an entity leak.

Add music.

Add a red armor corridor, fix an entity leak, remove a wall near the mega health.

Change the outer colour scheme and modify the support for a platform on the upper level.

Moved the Rocket Launcher downstairs and created a platform for the Railgun.

Corrected a very obvious problem with a visible caulked brush, re-textured it.