Here are some cheats and tips for the game Zool.
Cheat mode:
Type goldfish and press [Enter] to enable cheat mode. Press one of the
following keys to activate the corresponding cheat function.
Effect Key
Temporary invincibility 1
Level skip 2
World skip 3
Alternate cheat mode:
Type stretlamp or streetlamp at the options screen. Press one of the
following keys to activate the corresponding cheat function.
Effect Key
Level skip [Keypad Plus]
Previous level [Keypad Minus]
Invincibility 1
Lose a life 2
Unknown 3
Restart level 4