Is there a "perfect" game? Is there a historic example of a chess game that has, to date, resisted all computerized attempts to find a better sequence of moves? In other words, a "perfect" game?

CLARIFICATION

I should have made it clearer that I'm not looking for a perfect (without the quotes) game. That probably will never exist.

But is there a game that no computer has ever been able to improve as of this date?
In my opinion, it's almost impossible to say that a game is perfect if you include the opening.  If you take the first few moves as a given (for example 1. e4 e5), then it is possible to say that a series of moves is perfect.

One example of a so-called perfect game is the Immortal Draw.  Carl Hamppe and Philipp Meitner played to a draw in 1872, and in the next century, no improvements have been found for the game.  It has stood up to all sorts of computer analysis and GM analysis. 

Obviously the argument can be made that there is a "flaw" in the first 3 moves - maybe 1. e4 is not best, or 3. Na4 was an error, but if we ignore those 3 moves, every move starting with move 4 has held up as arguably the best move.  For instance, 7. Qe1 is often given as an option for white, but black can once again sac his queen for a perpetual check.

While there are certainly other lines that draw, the game line is the most beautiful IMHO.

[FEN ""]
[Event "Vienna 1872"]
[White "Carl Hamppe"]
[Black "Philipp Meitner"]
[Site "Vienna"]
[Result "1/2-1/2"]
[PlyCount "36"]

1. e4 e5 2. Nc3 Bc5 3. Na4 Bxf2+ 4. Kxf2 Qh4+ 5. Ke3 Qf4+ 6. Kd3 d5 7. Kc3 (7.
Qe1 Nf6 8. g3 Qg4 9. Bh3 dxe4+ 10. Kc3 Nd5+ 11. Kb3 Nc6 $1 12. Bxg4 Na5+ $11)
7... Qxe4 8. Kb3 Na6 9. a3 Qxa4+ 10. Kxa4 Nc5+ 11. Kb4 a5+ 12. Kxc5 Ne7 13.
Bb5+ Kd8 14. Bc6 (14. Nf3 $4 b6#) 14... b6+ 15. Kb5 Nxc6 16. Kxc6 (16. Ka4 Nd4
17. Qf1 Bd7+ 18. Qb5 Bxb5#) 16... Bb7+ 17. Kb5 (17. Kxb7 Kd7 18. Qg4+ Kd6 19.
Qe6+ fxe6 20. Nf3 Rhb8#) 17... Ba6+ 18. Kc6 Bb7+ 1/2-1/2