The Last Ninja 3

Unlimited lives in level 1:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 28962,165

Unlimited lives in level 2:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 29207,165

Unlimited lives in level 3:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 28800,165

Unlimited lives in level 4:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 29035,165

Unlimited lives in level 5:
Load or reset the game, then execute the following BASIC command before running or restarting the program.

POKE 29192,165