Depends on the definition of perfect. To me, a game can have tons of problems and still be perfect. Banjo-Tooie is my all-time favorite game, despite its problems. Well, the only real problem I personally had with it was that it would slow down in certain places, and, of course, the graphics are pretty dated compared to what we have nowadays. But does it have pretty much everything I've always wanted in a game? Yes. Is it a game I'll always come back to and always enjoy? Absolutely. It's perfect in my book.
Of course, that's just me with a very simplistic view.
Of course, that's just me with a very simplistic view.