All the available cheats in Age of Empires III are listed here. To enter a cheat codes, press "Enter", while in a game to activate the chat box. Then type the following cheat codes to gain the effect listed immediately after the code is entered.
Age of Empires III
a recent study indicated that 100% of herdables are obese
Fattens all the animals on the map, generating more Food from them (also helps opponents).
The "sooo good" cheat is a reference to the Homestar Runner sub-series "Teen Girl Squad", in which a similar "[noun]'d" occurs whenever one of the girls is killed. In addition, "Sooo good!" is the girls' catchphrase.