Love this game. It's so much fun, and the social commentary is spot on. I found it hilarious and I'm always waiting to see what new douchey outfit, or chinstrap shape I can adorn him in next. Oh the excitement. :D
My one tiny criticism is that the exercises can be a bit hard to control (the bicep curl being the main culprit.) But that may just be me, being crappy at it.
Anyway, you should totally make a female version of this game. haha Save money to get bigger and bigger fake boobs, and practice your duck face with lip injections. (Maybe your end goal as a vapid, slutty female can be to be forever immortalized as art on the front page of NG. :D)
Anyway, awesome idea. Love it. You rock.