• Level select

Press Select sixteen times, then press Run at the title screen. Press Select to choose a starting level. | [Sent by Neto]
  • Sound mode

Hold Select + I at the title screen. | [Sent by Neto]
  • Sound test

Hold II and press Select at the title screen. | [Sent by Neto]
  • Unlimited continues

Press Run + I, Run + II at the title screen. An "X" will replace the number of the credits remaining to confirm correct code entry. | [Sent by Neto]