While playing the game (when you are in your zoo) press the following key combinations to aktivate the indicated cheat effect:

Press SHIFT + ALT + C - Add $100,000 Press SHIFT + ALT + W - Get The Scenario Completed Press SHIFT + ALT + L - Unlock all Scenarios Press Shift + Alt + A - Unlock all Scenarios Press Shift + Alt + I - All Visitors Will Not Live In Zoo Press Shift + Alt + N - All Animals unlocked Press Shift + Alt + R - Zoo Rating Will Be 100 Press Shift + Alt + T - All Reaserhable Items Complete Press [Shift] + [Alt] + [T] during game play-Unlock All AnimalsShift + Alt + S - All Research complete, all awards and animals

Master cheat (Zoo Challenge only): Press SHIFT+Alt+S. Now you have all Research completed, all awards unlocked and all locked animals in your character.

Special animalsYou can unlock animals such as the Asian Black Bear, Przwlaski's Wild Horse, Albino Gorilla, Chinese Alligator, etc. Research the strongest fence and go to the bottom of the list of animals. All the ones after the Chinese Alligator are the ones that can be unlocked unlock during scenarios. Rainforest Zoo has the Przwlaski's Wild Horse and Asian Black Bear. Condition:Critical has the Albino Gorilla and Asian Black Bear.

Special terrain mapsYou can also unlock special terrain maps by completing scenarios. For example, Rainforest Zoo will unlock the Rainforest zoo terrain.