I agree, 2.f3 is silly.
Black doesn't even have to take on the 2nd move, and white just loses the natural square for his king's knight
Something like 2...e5 or 2...e6 (mentioned above) is just better for black.
And when you commented on move 20 white is clearly better - what centre are you talking about? I see a knight on d2 with no where to go, and a pawn on e4 poking at a dead end. If anything, black is better due to his open files.
With a simple strategy I got a highly favorable endgame against Fritz 10 in 20 moves; but move thirty I think Fritz is just lost, but I don't do endgames so someone else can mop the ending.