Bio Menace

A platforming game based on the Commander Keen engine, and you're playing CIA agent Snake Logan trying to exterminate aliens.

Debug Mode
Pressing C, O, and D simultaneously will bring up a prompt asking for a command. Enter 91827, then press J, I, M, and Space together to enable the debugging keys:
 * F10 + B - Change border color
 * F10 + C - Show number of active/inactive objects in the level
 * F10 + D - Record a demo
 * F10 + E - Skip level
 * F10 + G - Activates God Mode
 * F10 + I - Free items
 * F10 + J - Jump cheat
 * F10 + M - Display how much memory is in use
 * F10 + N - Turn clipping on and off
 * F10 + P - Pause
 * F10 + S - Turns on and off slow motion
 * F10 + T - Sprite test
 * F10 + V - Add Extra VBLs
 * F10 + W - Warp to level
 * F10 + X - Extra Stuff
 * F10 + Y - Reveal hidden areas
 * F10 + Z - Lose a life