"This kid" is YOU. You rap about your name being Josip, which your email says, and the video description says, where it ALSO says "This kid", when it is in fact YOU attempting to get attention.
Also, the WHOLE song is about bragging about how good you are, while occationally dropping Nintendo names. You're a typical nigger being full of yourself. The only time in the song where you stand for something else, it's about NOT going to college, because apparently "you have a brain".