Restore all sand slots:
     Click  and  hold the Left Analog-stick and quickly press B, B, A,
X, X, A, Y, Y during game play.

Secret king sword weapon:
     Press  Start  to  pause game play, then press Up, Down, Up, Down,
Left, Right, Left, Right, Y, X, Y, X.

Secret baby rattle weapon:
     Successfully complete the game under the easy difficulty setting.
Press  Start  to pause game play, then press Right, Right, Left, Left,
Y, X, X, Y, Down, Up.

Secret telephone weapon:
     Successfully  complete  the  game  under  the  normal  difficulty
setting. Press Start to pause game play, then press Left, Right, Left,
Right, Up, Up, Down, Down, Y, X, Y, Y, X, X.

Secret swordfish weapon:
     Successfully complete the game under the hard difficulty setting.
Press  Start to pause game play, then press Down, Up, Down, Up, Right,
Left, Right, Left, Y, X, Y, X.

Secret chainsaw weapon:
     Press  Start  to  pause game play, then press Down, Down, Up, Up,
Right, Left, Right, Left, Y, X, Y, X.

Easter Egg - Voice credits:
     Play  through  the game until getting to the large courtyard just
immediately before the first chariot sequence, during your second Dark
Prince  transformation.  Look in the corner of the courtyard to find a
hole  in  the  ceiling  which  enemies appear from until you leave the
area.  Stab  and  hang from the panel near that hole to open the exit.
Climb  the  pole nearest to the hole in the ceiling to hear a monotone
female voice announce the game's voice credits