Prince of Persia:The Two Thrones - Restore all sand slots

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.

A defensive and an offensive way of killing a Sand Wolf:
The Defensive
As easy as it can get. Just keep blocking its attacks and wait for it to stop moving and starting to drain sand. Run toward its front and press X. The Prince should now be stabbing his dagger through the upper half of the SWs mouth.
The Offensive
A bit harder, but still not difficult. Just keep attacking until it lies on its back. Run towards it and press X. The Prince should now begin to plunge his dagger into the SWs stomach.