In the game press [Ctrl]+[Alt]+[Shift]+C then type the following code to get different results:
"Jail Break": a pack of Tomb Robbers looking for burial provisions appear.
"Hail to the Chief": a hailstorm appears.
"Crop Busters": swarms of locusts eat every crop in sight.
"Amphibious Assault": a plague of frogs descends upon the city.
"Crimson Tide": the river turns to blood.
"Ancient Astronauts": Pyraminds develop at a quicker pace.
"Mummys Revenge": mummies appear from monuments and attack the city.
