Zool 2

Cheat mode:
Press [Esc] at the options screen to display the configuration menu. Type
phonebook and press [Esc] to enable cheat mode. Press one of the following keys
to activate the corresponding cheat function.

Effect - Key 
Level skip - 0 
Bonus stage - 3 
Jump higher - [Ctrl] 

Cheat mode (Alternate):
Enter one of the following codes to activate the corresponding cheat function.

Effect Code 
Invincibility - tough guy 
Unlimited bombs - kickkass 
Press [Enter] to skip level - bumblebee 
20 credits - vision