I think all you need to do is look at the upper-left hand corner of the animal purchase box and click one of the two buttons (one has the male symbol and the other one has the female symbol) to select the gender of the animal you want.
code fish tycoon
u don't unlock it, you download it & that can only be done on the PC version sorry
There is no unlock code for Roller Coasters in Tycoon 3. To unlock the roller coasters you must go into career mode and complete the scenarios.
spider=-man
tyco768bins
It is already in the game.
You can download some of them or you can do the objectives and unlock them
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It is for iPod touches it is a game of animals what you do is you bild a zoo and you unlock animals
To unlock coasters you need to complete scenarios in career mode. Usually after each scenarios you unlock 1 coaster type.