Check out this article which translates Sakurai's latest column on Famitsu, where he talks about Pac-Man.
http://kotaku.com/pac-man-almost-got-into-super-smash-bros-brawl-1599610742
http://kotaku.com/pac-man-almost-got-into-super-smash-bros-brawl-1599610742
Really cool to find out Miyamoto supports Pac-Man in Smash. Makes sense, since he once stated it's his favorite video game character.In his semi-weekly column in Weekly Famitsu, series creator Masahiro Sakurai revealed that, much like the player-created Mii Warrior, Pac-Man was almost a guest character in the Wii game, Super Smash Bros. Brawl. "During development of Smash Bros. Brawl, Mr. Shigeru Miyamoto of Nintendo approached me and asked, 'Can't we have Pac-Man as a guest character?'" Sakurai recalled. "At the time, imagining the image of Pac-Man and his incomplete pizza shape, I thought to myself, 'Hmmm... That's a little too farfetched.'"
As Sakurai explains, coming up with an idea and actually making it a reality are very different beasts. While it's easy to imagine a character in a Smash Bros. game, on the dev side, there's a lot more to consider. "How to give the character their own individuality as a fighter and how they'll move. Should the game system maintain a consistent form or not. What other fighters are there and how will the new character differ in strategy? Does the new idea fit with the original game? Most importantly, is it entertaining?"