Take a save game file and use a PD program such as NewZap to patch
 byte 18 to a non-zero value. Load your save game, and now these cheat
 options are enabled: 
 
 Arrow Keys - Move Rapidly over any terrain
 B - Summon Gold Swan
 R - Rescue Princess
 = - Display coordinates
 F10 - Location in coordinates
 F9 - Increase time by 1 hour
 
 Sometimes you can accumulate all the treasure you want by going near
 the item, pressing space bar, and then continue hitting 'T'. You'll
 receive an infinate supply of that treasure.
 
 Save your position in a dungeon. Then go through it until you run out
 of keys. When you restore your game, all the doors will be open and
 you will have a new set of keys. Also works in caves.
 
 Jump on the turtle and start slashing. Your bravery points will go up
 to infinity and it doesn't hurt you or the turtle.
 
 On the island with the Crystal Castle, press the right mouse button
 while talking to the Sorceress and your luck will go up to 65.
 'ASK'ing the Sorceress several times will usually boost your luck.
 
 If running low on Green keys, use a secret entrance for the fort.
 It's on the left side, almost even with the door.