Zoo Tycoon DS - Platform: Nintendo DS

All animals, folige, building, etc:
-----------------------------------
at the main menu screen press (up, up, down, down, left, right, left, right).
you should hear a elaphant if done right

Bonus scenarios:
----------------
There are four bonus scenarios that are unlocked by completing a scenario on 
different difficulty settings.

Guest Codes:
------------
Rename a guest to the name given for the desired effect.

Andrew Binder    - All Animal Houses
Lou Catanzaro    - All animal toys
Charlie Peterson - All Foliage
Dr Dolittle      - Animals breed more
Mr. Blue         - Changes everyone's shirt blue
Mr. Brown        - Changes everyone's shirt Brown
Mr. Orange       - Changes everyone's shirt Orange
Mr. Pink         - Changes everyone's shirt Pink
Mr. White        - Changes everyone's shirt white
Mr. Blonde       - Changes everyone's shirt yellow
Akiyama          - Completes All Scenarios
Bill Gates       - Donates a lot of money
Adam Levesque    - Get all Animal Shelters
Zeta Psi Make    - Some Guests sick
Steve Serafino   - Unlock Endangered animals
John Wheeler     - Unlocks All Animal Shelters Available