Cheat Codes
Hit CTRL+ALT+C and enter and type the desired cheat:

Code - Result
Delian Treasury - Add 1000 Coins
Ambrosia - Win Scenario
SoundFrags - Unknown Effect
Fireballs from Heaven - Strike a Particular Piece of Ground with Fireball
Bowvine and Arrows - Towers Shoot Cows Instead of Arrows
Cheese Puff - Dairy Workers Put on Cheese Suits

Shoot cows from the sky
Enable the Bowvine and Arrows code followed by the Fireballs from Heaven code to shoot cows from the sky.

Hero's Hall
Sometimes a Hero's Hall must be built in certain places. For example, Thesues' Hall needs to be built by the palace, surrounded by walls and have good appeal. On maps where space is at a premium this can be difficult to accomplish. To get around this, after you have filled the requirements to summon the hero, and while the hero is on his/her way to the city, you can demolish the hall and any of the structures you had to build to meet the requirements. Then, rebuild the hall anywhere that is connected to a road. The hero will not care and will serve your city as usual.

Easy monster kills
Instead of worrying about building the Hero's Hall to slay monsters, use the Fireballs from Heaven code to shoot fireballs at a monster. One hit and the monster is slain.