RAMBO

To make your hero invincible, enter this password:
H800 lbW2 kG4Q KwKc 66WH QbW2 0F1D G19D

End of the game:
To begin your game at the end, enter this code
yDaB pc71 jQOA uT3D nfWW 3UKT Yv4g G5WH

Special Ending code:
Rambo has two different endings. The one above is where Rambo's 
friend, Co, die. By entering the following code he'll stay alive.
WL8k Xv57 TwOB WU3C BDA7 cvJ7 2PtH 9EO4

Invincible man:
You're a "normal" Rambo, but cannot die even when your life bar
hits zero. H800 lbW2 kG4Q KwKc 66Wh QbW2 OF1D G19D