The cheat mode for Prince of Persia II can be accessed by starting the game
by typing:-
   Prince yippeeyahoo
If you do this then the cheat functions that were available in POP I will be
available using the identical keys (Shift + T; Caps Lock + J; +; etc).

Apparently the codeword makinit works instead of yippeeyahoo on certain early
copies of the product.