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