Catacomb 3D
   By:  
   Release date: 

   The codes.

   Press the F10 key with the following keys.

 B     Change border color.
 E     Exit current level.
 F     Location coordinates.
 I     Extra items.
 M     Memory usage.
 P     My program bombed and exited program.
 O     Map, Use  ARROW keys. ESCAPE key
             brings back program.
 W     Warp to any level. 1 is the first level.
             Won't go to level 21.
 X     Extra stuff.