Debug Mode - Command Line Parameters:
POWERBALL - Enables debug keys. This also requires that you
hold down the left and right shift keys during
the JAM Logo intro. Don't hold them down until the white
letters start to appear. Once the PC-13 screen is loaded,
you can let go. You will hear a "ching" sound during the
intro when debug mode has been successfully enabled.
The "ching" sound will only happen if you have a sound
card. If you have a PC speaker, you won't hear this.
TICS - Display TIC INFO in score area.
MUSIC - Enable music test mode: [backspace] [arrows] changes music.
RADAR - Displays a rotating overhead view during gameplay.
Please note that this REALLY slows the game down, to the point
of being unplayable.
These cheat keys can be use during gameplay only if you invoked
the program with the "powerball" parameter:
[backspace] W - Warp to level ([shift] [W] loads the default map)
[backspace] D - Player invisible (dumb objects)
[backspace] G - God mode
[backspace] I - Item cheat
[backspace] M - Memory info
[backspace] P - Pause screen
[backspace] Q - Fast quit
[backspace] A - Add Actors to Automap.
[backspace] U - Unlock all floors
[backspace] O - Show hidden walls on auto mapper
[backspace] E - Quick Win Mission
[backspace] B - Border color
[backspace] C - Count objects
[backspace] F - Facing spot
[backspace] H - Hurt self (only if not in God mode)
[backspace] S - Slow motion
[backspace] V - Extra VBLs (Vertical Blanking Signal -- this will
do nothing for most users)
[backspace] [home] - Dec sky color (if ceiling textures are OFF)
[backspace] [pgup] - Inc sky color (if ceiling textures are OFF)
[backspace] [end] - Dec ground color (if ground textures are OFF)
[backspace] [pgdn] - Inc ground color (if ground textures are OFF)
[backspace] + - Add shading depth (if textures are OFF)
[backspace] - - Dec shading depth (if textures are OFF)
[backspace] ] - Inc shading drop off (if textures are OFF)
[backspace] [ - Dec shading drop off (if textures are OFF)
[shift] [tab] - Show full Automap containing all live actors.
These cheat keys can be used during gameplay:
  - Collect all bonus items (gold, ammo, health, etc).
  - Kill all actors.
  - Collect all bonus items and kill all actors.