In a recent interview with the BBC's Click program, Hideo Kojima, creator of the acclaimed Metal Gear franchise, has revealed that the first few years of development on MGS4 were "trial and error".
"We started to work on Metal Gear Solid 4 four years ago, after finishing Metal Gear Solid 3," said Kojima-san. "At that time we really didn't know what the PS3 was going to be like, so the first two years was all about experimenting, developing and trial and error."
"In the last two years, we've known what the PS3 is capable of, the specifications of it and how we can utilise it," he continued. "PS3 is a monster machine. That's why it took so much time to create Metal Gear Solid 4."