Speaking to the BBC, Hideo Kojima has spoken about how Metal Gear 4's life started as a consultation with Sony on the birth of PlayStation 3 itself.
"We started to work on Metal Gear Solid 4 four years ago, after finishing work on Metal Gear Solid 3," he said. "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 know what the PS3 is capable of, the specifications of it and how we can utilise it... PS3 is a monster machine. That's why it took so much time to create Metal Gear Solid 4.
"Since we're developing only for the Sony format, Sony has given us a lot of advantage before the actual release of the hardware. So we had many meetings with them to discuss the specifications. We analysed this black box before it was released, and we experimented with it and we gave Sony a lot of feedback, like, 'Can we do this and can we do that.'"
Watch the full thing through the link. There's future-gazing stuff there about leaves. We love you, Hideo.