Retro characters are generally included to represent Nintendo’s past (hence the rest of the cast represents Nintendo’s present, or even future). Mr. Game and Watch, for example, has been very important to the history of Nintendo. The Game and Watch series was Nintendo’s first attempt at a “video game”, and the series enjoyed great success, having an eleven year run. Not only is the character recognizable to all of those who consider themselves ‘old-school’ gamers, but he fits the bill of what a retro representative in Smash should be – popular back in the day, good sales, and a fanbase.
The Ice Climbers also fit the bill of a good retro representative – popular, good sales, and a fanbase. Not to mention the large amount of popularity they have garnered simply by appearing in Smash Bros.. While some may argue that before Melee, very few people had heard of them, and so they’re not necessarily the best/most iconic choice for a retro character, that argument doesn’t have much weight since…well, they have already been picked, and have shown up in two successive games in the series now.
Pit was one of the original characters announced for Brawl, and Kid Icarus fans everywhere couldn’t have been happier. Also, a number of people who had never even heard of Pit were beginning to pay attention to the character. He also follows the rules of being a ‘good’ retro Smash character – he has popularity, his first game had good sales (his second adventure was overshadowed by other Game Boy releases), and a fanbase. There are also many rumors circling around the internet about a new Kid Icarus game. With all this in mind, Pit doesn’t seem to be going anywhere.