• Arcade mode screen

Hold Select and press Run 57 times to reset the game for a narrow screen. | [Sent by Neto]
  • One hundred continues

Press Down, Right, Select, Down, II, Down, I, Left, Select, Up, I, II, I at the title screen. Press Run to begin game play. | [Sent by Neto]
  • Sound test

Press Left, Right, Down, Up, Select, Left at the title screen. | [Sent by Neto]
  • Two continues

Hold I and press II at the title screen. A sound will confirm correct code entry.
| [Sent by Neto]