It's the NES's silver anniversary this month, yes, but it also happens to be the 25th birthday of Super Mario Bros., the game that arguably did more than any other NES title to ensure that Nintendo's fledgling system would be a runaway success.

Shigeru Miyamoto, designer of SMB and a couple dozen other Nintendo titles you might be familiar with, sat down with Famitsu magazine in this week's issue to share some behind-the-scenes development tales from the NES's flagship title.