Cheats for Fantasy Zone (GG)
At the title screen, press Up, Right, Down, Left, 1, 2, 1, 2, Start. ''Config Mode'' will pop up. It allows you to set the number of Lives you have, the Difficulty, Stage Select, Money, and a Sound Test.
Access the cheat menu (by press Up, Right, Down Left, 1, 2, 1, 2, Start when the words 'push the start button' come onto the title screen) and highlight the Mode option. Hold Left and then press 1 and 2 at the same time to get the 'Undead' setting.