Kobe Bryant Mamba Focus size 13/14 signed basketball shoe. Inspired by the code name for a deadly assassin in Quentin Tarantino's 2003 movie "Kill Bill,” Kobe Bryant adopted the nickname to separate his life on and off the court, saying, 'If I create this alter ego, now when I play, this is what's coming out of your mouth, it separates the personal stuff, right?' You're not watching David Banner -- you're watching the Hulk.” Thus, Bryant said of the animal that inspired the name, "When I step on that court, I become that. I am that killer snake! Later, Nike partnered with Bryant and the Los Angeles Boys and Girls Club to launch a youth basketball league, called the Mamba League, to give hundreds of kids free access to the sport. Bryant later created the Mamba Sports Academy to provide broader athletic and lifestyle training to competitors at all levels in a number of sports.