If you want to make a good start in mapping this game, it would be wise to have a bird's eye view map to start. I have made such maps for 3-dimensional games such as SNES "Eye of the Beholder", and I see no reason to turn into 3D, after all it shows everything you could possibly wish for: enemies, items, doors, panels, anything. Think about it magicbay, Blake Stone unlike Double Dungeons is an all direction, constant moving game, whilst Double Dungeons is a 4 direction, 1 step at a time moving game. Not of course that the game doesn't deserve to be mapped being lesser action packed that Blake Stone, but I would not be worth the trouble. Do take a look at my "Eye of the Beholder" maps if you want to get a good brainstorm.