Thx.
How well was this game played ?

Black got a pretty normal position, but a few tempi down, then finally went for something with e5, but white is better.
20.Bf5 was a gift. Black's only play is to hope with the a5 break. He can't even dream of something like Ne4 with eventual kingside anything because white can trade off that knight, play Nd4, and have a picturesque good knight vs bad bishop.
So 20.a4 21.a5 comes to mind taking away all of black's play, then jiu jitsu him on the kingside for as long as you want, always with the ability to go into a favorable endgame (I'm assuming). This is a comfortable blitz plan anyway.
29...Rxa1 is the same as resigning. It's just a move you never play.
That's my thoughts.

Oh, I stopped looking there, there was some endgame stuff.
35.c6 is completely unnecessary. "Knight endgames are pawn endgames." You're a pawn up and it's a protected passer. Also black has weak pawns. Just activate both pieces (knight on d4, king walks up the board) and black can resign. c6 also unprotected the pawn, and just in general is a pawn move when your pieces can be improved (just a general principal thing).

"Knight endgames are pawn endgames."
Who said that quote?
Botvinnik

Basically because many of the evaluations are the same. Like how outside passers are great, being a pawn up (usually) means you're just winning, and it's important to calculate concrete lines.
So if you can take the knights off and it's a winning pawn endgame, then with knights not much changes. That's the basic idea.

Move 29 rook to a1, why is this same as resigning? Is it that bad ? What can happen there? I don't see any thing crucial happening

29.Ra1 is fine.
29...Rxa1 is unthinkable
All black's hopes and dreams are on the a file... giving it to the opponent is not only crushing your own dreams, but it turns the dream to a nightmare Positional version of a helpmate.

Good endgame he blew it going out of the "square of the pawn" so his K could catch your pawn. There's not a lot of deep planning, but for a 3 min. game it was fine and I tip my hat to anyone who can play fast games without frequent blunders!

Your opponent should have opted to keep the second set of ladies on the board because that was a winning king and pawn endgame for white. But this was blitz. I wouldn't make openings like that your bread and butter, that is just my opinion. I know I'm lower rated than you but in my experience when playing against a good player you don't really gain anything from playing goofy openings. I gather you were just experimenting, or just play this way on occasion. I would be very surprised if you play this way all the time. I personally think the grob is more fun to play on occasion, but that is just me. The Orangutan only works if your opponent forgets about the dark squared bishop, and plays e5 in response to your first move. I once played someone who played this opening in bullet and I remember him doing an elaborate pin that won him the game, using his dark squared bishop somehow. I forgot how he managed to do it because it was a long time ago but it was fun even if I did lose that game. I think we played like 20 games. For some reason, people love to rematch in bullet.
Well, we all are going to play however we want to play in the end. I don't know if this is your bread and butter but if it is, I think you might see an increase in your rating if you start learning to play conventionally. As FCO said, one should learn how to play classically before learning a more modern approach, but the Orangutan isn't a modern weapon, it's more of an ORANGUTAN LOL! I sometimes play a dumb opening in bullet, but I know better to play it in a serious game. I hope that is the same in your case. If it's not then, even coming from me, a lower rated player, I think you can gain a lot of rating points if you just learn to play conventionally, but don't worry I won't mind if you think I'm some nutjob for trying to tell you what to do. Have a nice day!

Their is more theory to it , the just hoping that my opponent forgets about his dark square bishop.
Their is various continuations of the Sokolsky Opening and I know them very well each one of them , so it comes very handy , especially considering not many players studied this particular lines. You can catch them of guard , especially in blitz.
This opening is very good, strong for players under 2200 Elo after that it's another story. Especially perfect in blitz if you are familiar with all the theory.

Basically any opening, sound or unsound which you mastered, flank openings doesn't matter you can always crush anyone under 2200 Elo rated, even in a rapid time controls if you play well. Blitz is easy. Carisen opened once a3 or a4 as his first move and still won and it's way worse then polish lol plus he was playing a strong player, blitz time control.
So basically my point is under 2200 Elo play whatever you want as long as you play it well after that your luck finishes.
All criticism, opinions are welcome.
Time control 3|0 each side.
http://www.chess.com/livechess/game?id=2047568612