Bio Menace 

Customer Cheat
  • [C] [A] [T] - During gameplay, you can press these three letters at the same time, and you will receive the machine gun, 99 ammo, & 99 grenades. This works only in the registered version.
Tech Support Command Line Parameter
  • COMP - Turn on SVGA compatibility
  • NOAL - Disable Adlib sound card detection
  • NOJOYS - Disable joystick detection
  • NOMOUSE - Disable mouse detection
  • HIDDENCARD - Disable video card detection
Other Notes The following secret weapons are available in both the shareware and registered versions:
  • Super Plasma Bolt - Hold the up arrow until you hear a charge sound, then hit fire; this causes one hit point of damage.
  • Fireball Attack - Turn left and right 6 or 7 times in succession, then hit fire.
  • Electron Shield - Turn left and right 6 or 7 times in succession, then hit the jump key.
  • Invincibility Burst - Hold the up arrow until you hear a charge sound, then hit the down arrow.

Notes
  • "Customer Cheat" means it's the cheat given out with the registered version of the software.
  • "Debug Mode" means it's an unsupported cheat mode.
  • "Tech Parameter" means it's a code that does something, but really isn't a cheat, it's more or less there to help Apogee Customer Support.
  • "Misc Command Line Parameter" is the same type of thing as Tech Parameter.
Cheat keys are not officially supported by Apogee. If you use the debug keys, Apogee cannot provide any support, since this alters game performance to a state where our standard support comments and issues might not apply. In short, using cheat keys can cause the game to malfunction or crash. Use at your own risk!