Trick:

To cheat in this game, you will need the DOS utillity DEBUG. First make a backup of your game, then enter the following from a DOS prompt:

Rename the file rastan.dat to cheater.cht (ren rastan.dat cheater.cht)

debug cheater.cht
To get infinite lives, enter:
e 9b2 90 90 90 90
To get infinite energy, enter:
e 8103 90 90 90 90 eb
e 9102 0
e 8147 90 90 90 90 eb
e 910f 0
Then type in: w

q

Then rename the file CHEATER.CHT back to rastan.dat.