Prince of Persia 2

Cheat mode (floppy disk version):
Start the game with the prince yippeeyahoo or prince makinit2 command lines to enable cheat mode. Then, enter one of the following codes during game play to activate the correspond cheat function.

Effect - Code 
More time - [Plus]
Less time - [Minus]
Kill on screen enemies - K
Return to life - R
Toggle position display - [F1]
Toggle player - [F3]
Ruler - [F6]
More energy - [Shift] + T
Less energy - [Shift] + K
Show room number and jump right - [Shift] + R
Show room number and jump left - [Shift] + W
Invert screen - [Shift] + I
Show only prince only - [Shift] + B
Level skip - [Shift] + N
Create dump?.txt file - [Alt] + D