Change guest names to the following for the desired results:
'Adam Levesque'......for all animal care programmes
'Steve Serafino'.....for all endangered animals
'Andrew Binder'......for all animal houses
'John Wheeler'.......for all animal shelters
'Hank Howie'.........for all staff education
'Lou Catanzaro'......for all animal toys
'Charlie Peterson'...for all foliage
'Akiyama'............to unlock all scenarios
Name exhibits to the following:
'Microsoft'..........for x2 donations
'Xanadu'.............to unlock the Unicorn
'Cretaceous Corral'..to unlock the Tryceratops
Money cheat
This is by far the easiest money cheat to use
Press and hold Shift+4 whilst playing for loads of cash. This will deteriorate your fences so it's best to use it in the early stages of the game.