For infinate lives in this game, use the DOS utility DEBUG.
First backup your game to be edited, then type the following
from the dos prompt: (CGA version only!)
ren e:\traz.exe cheater.cht
debug
a 100
mov dx,es
add dx,1000
mov es,dx
g 108
r ip 100
ne:\cheater.cht
l
e es:6b2f 90 90 90 90 90 90
w
q
Then rename CHEATER.CHT back to its previous name.