Unlimited continues
Choose the "Configure Options" selection
and use the Music icon. Play selections 9, 8, 7, and 6 in order
for approximately fifteen seconds each. Begin game play and intentionally
lose all three lives. An infinity symbol will appear on the continue
screen to confirm correct code entry.
Special attacks
Press [L] or [R] to somersault with the Ninja.
Press [Attack] during the first jump of the somersault to
execute a Dragon Punch or [Jump] to execute a Flying Kick.
Press [Attack] during the second jump to execute a Reverse
Kick or [Jump] to execute a Fire Kick. Press [Attack]
during the third jump to execute a Sword Dragon Attack or [Jump]
to execute a Vertical Fire Kick .
Secret room
Take the elevator up in level 3-2. After arriving at
the top, move directly to the left. Kill the opponents to get
several items including energy, extra lives, bombs, etc.
Hard mode
Successfully complete the game and wait for the credits
to end. Start another game to play as Super in hard mode.