Here are some cheats and tips for the game Zanac.
Level select:
Reset the NES system thirteen times, then press Select.
Choose the “Continue” option and press Left
or Right to select a starting level. Press Start
to begin game play.
Sound test:
Hold A + B and power on the NES system. Alternatively,
hold Start + Select + A + B at the
game over screen. Release all buttons when the screen turns black.
Continue game play:
After losing the game on level 11 or 12, highlight the “Continue”
option on the title screen, press Down, Up on controller
two, then press Start on controller one. Alternatively,
after the title screen re-appears hold Up + A +
B + Select until “Continue” is highlighted,
then press Start.
Ship power-up:
Hold A + B and press Start at the title
screen. After six “6” power-ups are collected, all
objects will transform into extra lives.
Transform ship:
Hold A + B + Select + Start when
game play begins.