Hold [Esc] to pause game play. Then hold [F12]
and enter one of the following codes. Then, release all keys and
press [Space] to resume game play. A message will confirm
correct code entry.

Code
Full health [Up] three times, [Left] five times
Full sword power [Up], [Up], [Left], [Left], [Right], [Right], [Left], [Left]
Unlock all doors1 [Up], [Up], [Right]. [Right], [Up] four times
Level skip [Left], [Right], [Left], [Up], [Right], [Up] three times
Strategy