On the board you may have found the cheat tips by some other users.
However,  PRINCE MEGAHIT  and PRINCE MAKINIT are only available for
beta versions. If you  have the released  version, you need to type
PRINCE YIPPEEYAHOO  instead.  Some cheat functions on  beta version 
may not be  avaliable  on released  version (ie Advance Level, kill
all enemies on screen, and etc). So, good luck.

acsm@ccs.neu.edu
Anthony Chow

PS: Any comments please Email to me. Thanks for reading this text.