Cheat mode:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 13617,173
Unlimited lives:
Load or reset the game, then execute the following BASIC command before running or restarting the program.
POKE 6701,255
No opponents:
Hold [Restore] while the screen is scrolling to move forward without encountering any opponents.