Start the game with the "\deluxe pacman\dpacman.exe" -wanda command line. Then, activate the following cheats by pressing the corresponding keys. Note: High scores are disabled while cheat mode is active:

CHEAT FUNCTION - KEY
Change ghost to blue status - F1 to F4
God mode - F9
Disable God mode - F10
Five lives - F11
End current level - PAGE UP
Next power-up is the Present - O
Next power-up is Diamond - D
Next power-up is E - 1
Next power-up is X - 2
Next power-up is T - 3
Next power-up is R - 4
Next power-up is A - 5
Next power-up is Freeze - F