During play, press Enter and type in the following codes. Note: codes must be in all caps.

ATM OF EREBUS            1000 Gold 
TROJAN HORSE FOR SALE    1000 Wood 
JUNK FOOD NIGHT          1000 Food 
MOUNT OLYMPUS            Full favor 
LAY OF THE LAND          Reveal Map 
UNCERTAINTY AND DOUBT    Hide map 
THRILL OF VICTORY        Win game 
CHANNEL SURFING          Skips to the next scenario
L33T SUPA H4X0R          Fast build 
DIVINE INTERVENTION      Enable a used god power
PANDORAS BOX             Get random god powers 
WRATH OF THE GODS        Get burly god powers
GOATUNHEIM               Get goat god power
FEAR THE FORAGE          Get walking berry bushes god power 
BAWK BAWK BOOM           Get chicken-meteor god power 
I WANT TEH MONKEYS!!!!!  Get a bunch of monkeys 
WUV WOO                  Get Flying purple hippo 
TINES OF POWER           Get Forkboy 
O CANADA                 Get Lazer bear 
ISIS HEAR MY PLEA        Get heroes from the campaign 
CONSIDER THE INTERNET    Slow down units 
SET ASCENDANT            Reveal all animals on map 
IN DARKEST NIGHT         Changes to night  
RED TIDE                 Makes water red 
MR. MONDAY               Expert CPU AI
ENGINEERED GRAIN         Makes all huntable animals fat
LETS GO! NOW!            Speed up game
TINFOIL HAT              Randomizes ownership of every unit on map
TITANOMACHY              Instant titan at your town center
ZENOS PARADOX            Four random god powers
RESET BUTTON             Deconstructs all buildings on map
ATLANTIS REBORN          All heroes from "Atlantis Reborn" at town center

Thanks to Revolution readers Esus and BarnabyFly!