For infinite lives in this game, use the DOS utility DEBUG. First backup
your game to be edited, then type the following from the DOS prompt:

ren 4r.ae cheater.cht
debug cheater.cht
e 32dd 0
e 5cc8 0
e 7403 0
e 4b56 eb
Then type: w
           q

Then rename CHEATER.CHT back to its previous name.