well you could always go with a game where the concept is to not play the game. technically in order to play you would have to not play. that should work
The reason roleplaying is such a great hobby is that it touches ion the nature of storytelling and the thought processes of humans. If you can think it, then it can be done (at least in a general sense). The question then becomes... is there anything that cannot be done well?
To that I answer, yes. However, as much of a cliche' as this is, it holds true: it falls to the players and GM to really make any game work.
The problem is that mahy gamers do not want to nor have the time reosurces to really make some of the more esoteric or human-interaction-type games work.