[CTRL] [ALT] [I] - God mode toggle
[CTRL] [ALT] [N] - Go directly to next level
[CTRL] [ALT] [S] - Save screen shot to disk (pcx format)
[CTRL] [ALT] [F] - Full ammo, health, and Flame Thrower gun
[CTRL] [ALT] [L] - Add an extra life