Kojima's Son is the reason why Solid Snake is in the game
One source states, "Many players were taken aback when Solid Snake was announced in Brawl. Until that point, no non-Nintendo character had entered the fray, especially not one as left-of-field as Snake. Despite this, the prospect of including Snake began during Melee's development, when Kojima practically begged his friend Sakurai to put the character in the game.
Kojima's desire to have Snake in Nintendo's brawler didn't just stem from egotistical reasons (though he did notice a lack of Metal Gear Solid games on Nintendo consoles, which eventually led to The Twin Snakes). In fact, it was Kojima's son who prompted the ask. The two would often play Smash Bros. together and young Kojima wanted to see one of his father's characters in the game. Thus, with the right amount of nagging, Snake was implemented, and he has since become one of Brawl's most popular fighters"(Reid).
