Three years in the making by renowned developer Bungie Studios, Halo 3 is now finished and will begin its journey to store shelves around the world in less than four weeks. Halo 3 which has already set new records as the fastest preordered game in history, has exceeded one million presales in North America alone. The title is set to shatter day-one entertainment sales records when it is released worldwide beginning Tuesday, Sept. 25.