At the MS-DOS prompt type "spear debugmode". When the
game begins hold Shift-Alt-Backspace. A message should
confirm your success. Congratulations! You may now use
any of the following codes while playing.
TAB G God mode
TAB I Extra items
TAB N Walk through walls
TAB B Change border
TAB W Warp to any level
TAB E End level
TAB S Slow motion
TAB P Pause
Health and Ammo - While playing press the keys "I" L and
"M" at the same time. This code will give you 100% life
99 ammo both keys and all of the guns. But beware: this
code takes away your score too.