Seirei Senshi Spriggan Hints & Cheats

At the title screen, highlight "Option". Now, hold Select, then proceed to also hold Up and finally, press and hold Button 1 + Start. Keep holding all 4 buttons until the options screen loads.

While playing, pause the game and press Right, Left, Right, Left, Right, Left, Right, Left, II, II, II, II, II and II. You'll hear a sound if done right. Now, hold Left + I + II and unpause. If done right, you'll skip the stage.

While playing, pause the game and press Down 3 times, Select 3 times, Button I 3 times and Up 3 times..