Zoo Tycoon: Marine Mania Cheats

Name a Bottle Nose Dolphin "Hector" and you'll have a
Hector Dolphin.

Rename one of your exhibits "Xanadu" to unlock a unicorn in the animal panel.

Name an exhibit Super Croc to unlock the Deinosuchus. (The Deinosuchus is a 50ft. long prehistoric alligator.)

Block off part of the exhibit then put terrain that
can be trampled there. In their part of the exhibit, put Dirt,
Sand, Brown or Gray Stone, or Snow. You can also use water as
a fence if the animal cannot swim.

Once you have started a game hold down [shift]+ 4 keep pushing down untill desired amout of money is met (onece this cheat is activated all water and fences will be dirty and broken so apply before any fences or tanks have been perchased).

After winning the Shark World scenario, you'll unlock the photo booth. Check your structures menu and it will be there.

Rename an exhibit to Xanadu to see the unicorn exhibit.