The Legend Of Zelda: Majora's Mask cheats and cheat codes for Nintendo 64

Travel forward in time 12 hours:
Play this song with the Ocarina: C-Right, C-Right, A, A, C-Down, C-Down

Slower time / normal movement:
Play this song with the Ocarina: C-Down, A, C-Right, C-Down, A, C-Right.
Repeat the song, to return to normal.

Heal signs
Destroy a sign, Play this song with the Ocarina: C-Left, C-Right, C-Down.