Lol, twat bubble?
Haven't heard that one before.
Kinda funny, but not really hilarious to me, probably because I've never met anyone that thinks they could be a professional gamer. Although I have met two people who really were/are professional gamers... I'm sure they could relate to this a lot better than I can.
I'd suggest making the next ones more interesting, make him do more than just stand there and talk. Maybe throw up some funny images like when you were talking about giving up all real human relations, etc. Also, the audio was a little scratchy.
I hope they're not all going to be about gaming, that'll probably get old pretty quick *cough*awesomevideogames*cough*.