Zool 2

Enter these codes at the title-screen :
TOUGH GUY : Invulnerable
KICKASS : Unlimited bombs
BUMBLEBEE : Use [Enter] for level warp
VISION : 20 lives

--- Or:
In the config menu type PHONEBOOK, then [Esc].

While playing press [3],[0] or [Ctrl] (Information from Cheat Machine)