Cheats:
[Alt]+[L] = Max life points
[Alt]+[S] = Max spell points
[Alt]+[M] = Little map of the town or dungeon you in at the
moment
[Alt]+[B] = Get the magic picture
[Alt]+[U] = Get the clock
[Alt]+[O] = X-Y coordinates
[Alt]+[K] = Get the compass
[Alt]+[W] = Get the wind chain
[Alt]+[A] = Get the Amberstar

[D] = Get to the final riddle
[F] = Change the sound
[G] = Increase gold
[H] = Heal the entire party
[I] = Teleport
[L] = Light
[M] = X-Y coordinates from monsters near your position
[Q] = Status screen
[Z] = Increase experience points