Name one of your exhibits accordingly for the desired effect. It should also be noted that if you name a brand new exhibit using this cheat, it will crash the game. Everyone who's done it with a new exhibit has experienced this, so keep it in mind.
Wonderland = More people come
Xanadu = unlock the Unicorn
Doflopnok = Dodo
Cretaceous Corral = Triceratops
Microsoft = Double Exhibit Donations
Blue Fang = Guests pay 2x original amount for attractions
Note: if you name a brand new exhibit using this cheat, it will crash the game. Everyone who's done it with a new exhibit has experienced this, so keep it in mind.
Rename a guest to the name given for the desired effect.
Guest - Name Codes
John Wheeler = All Animal Shelters Available
Akiyama = All Scenarios Completed
Dr Dolittle = animals breed more
Alfred H = birds frighten guests
Mr. Pink = Change's everyone's shirt to pink.
Mr. Blue = Changes everyone's shirt blue
Mr. Brown = Changes everyone's shirt to brown.
Mr. Orange = Changes everyone's shirt to orange.
Mr. White = Changes everyone's shirt to white.
Mr. Blonde = Changes everyone's shirt to yellow.
Bill Gates = donates a lot of money
Adam Levesque = Get all Animal Shelters
Bill Clinton = hamburger demand goes up
Russell = Make Fences Deteriorate
Zeta Psi = Make Some Guests Puke
Hank Howie = Research all Staff Research Automatically
Andrew Binder = Unlock all Animal Houses and types
Lou Catanzaro = Unlock all animal toys
Charlie Peterson = Unlock All Foliage
Steve Serafino = Unlock Endangered animals
Press [Shift] + 4 to get $1,000. Note: When this code is used your park fences will break and your animals will escape. This code is best used before any exhibits are built.
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "zoo.ini" file in the game folder. Locate the following lines and change the values after the "=" as indicated. Note: The changes only affect new games and do not work on saved games.
If you have one of the BETA versions, hit Ctrl-D to access the Developer Mode. It will allow you to move zoo entrances and fences, add odd buildings, and even add vehicles. Remember, this only works in the BETA builds of Zoo Tycoon.
Make Trees or Grid Disappear/Appear
By pressing CTRL + F, you can make all trees in your zoo ''disappear'' (they still exist, they are just invisible for building purposes). Select CTRL + F again to make them reappear. By pressing CTRL + G, you can make the main zoo grid appear of dissappear, allowed you to judge the zoo from a regular smooth vantage point, or see each individual square.
Yellow brick road
Make an exhibit with a lion, a tiger and a bear. This will unlock the yellow brick path.
To unlock all dinosaurs name a guest Dinoman.