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.