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

ren rastan.dat cheater.cht
debug cheater.cht
For infinite lives, type:
e 9b2 90 90 90 90
For infinite health, type:
e 8103 90 90 90 90 eb
e 9102 0
e 8147 90 90 90 90 eb
e 910f 0
Then type:
w
q

Then rename CHEATER.CHT back to its previous name.