Secret baby rattle weapon:
     Successfully complete the game under the easy difficulty setting.
Take  out your dagger and do not have any secondary weapon. Pause game
play, then press [Left] [Left] [Right] [Right] [Up] [Down] [Down] [Up]
[Up] [Down].

Secret telephone weapon:
     Successfully  complete  the  game  under  the  normal  difficulty
setting.  Take  out  your dagger and do not have any secondary weapon.
Pause  game  play,  then  press  [Right]  [Left] [Right] [Left] [Down]
[Down] [Up] [Up] [Up] [Down] [Up] [Up] [Down] [Down].

Secret swordfish weapon:
     Successfully complete the game under the hard difficulty setting.
Take  out your dagger and do not have any secondary weapon. Pause game
play, then press [Up] [Down] [Up] [Down] [Left] [Right] [Left] [Right]
[Up] [Down] [Up] [Down].

Secret chainsaw weapon:
     Take  out your dagger and do not have any secondary weapon. Pause
game  play,  then  press [Up] [Up] [Down] [Down] [Left] [Right] [Left]
[Right] [Up] [Down] [Up] [Down].

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.