If It Moves, shoot it (PC)

This cheat will give you unlimited ships in the game.
CGA
Make sure "CGASHOOT.EXE" is in your current
sub-directory, then

Type From The DOS Prompt:
ren cgashoot.exe cgashoot.cht
debug cgashoot.cht
e 6da e9 10 1
w
q
ren cgashoot.cht cgashoot.exe

EGA
Make sure "EGASHOOT.EXE" is in your current
sub-directory, then
ren egashoot.exe egashoot.cht

Type From The DOS Prompt:
debug egashoot.cht
e 70b eb 7
w
q
ren egashoot.cht egashoot.exe