most obscure but awesome and useful opening

Against 1.e4 I play the Kalalimov Sicilian. The moves are 1.e4 c5
2.Nf3 b3. I had won at least 4 tournament games with this opening
and the lines go into hedgehog positions where the Black pawns
are at a6, b6, d6, & e6. White has pawns are at c4 and e4. This
opening is not well known because everyone plays the regular
lines of the Sicilian Defense with Black such as the Dragon, Najdorf,
Sveshnikov and etc. After 2,,,b3 3,d4 cxd4 4,Bxd4 Bb7 which puts
pressure on the e pawn.

Against e4, I prefer an Accelerated or Hyper-Accelerated Dragon. Matter of taste, I guess.

For black I prefer the petroff or sicilian.

Bongcloud is hilarious . Used it on a guy rated 2000 and trolled him so bad. Only lost in the endgame

Moe

As to your question, it really depends as to how ones defines obscure, awesome and useful. It really depends if you want to know about good (reasonably) sound methods of opening playing or if you want to delve into the weird and wacky world of making pointless and meaningless moves simply because you can...So It really depends..I like Alapin's 1.e4 e5 2.Ne2!? which can be used as transpositional tool to the likes of the Vienna & Scotch but can go down independant lines with the likes  of 2...Nf6 3.f4!? or Gary Lanes 3.d4. I have used this against players far stronger than me and have come out of the opening on the plus side (which does not mean I won....my endgame play is not the best). I have a weakness for the King's Gambit, my favorite being the Kere's Mason Gambit 1.e4 e5 2.f4 exf4 3.Nc3...although I have not played it in a while because of the cloud that surrounds 3..Qh4+ 4.Ke2 Ne7!. As black I have a liking for the Budapest Gambit and its Ne4 cousin. Against players who I know favor the sleep inducing Collie Opening I like the Englund Opening with 3...Nge7 The Stadlman Zilbermintz Complex.

What I am trying to get across is in chess nothing is really ever that easy when asking questions looking for simple answers. People will tell you that this is right or that is wrong...play d4...don't play d4...this opening doesn't work...that opening does work. The one thing I have learned over the years is chess is simple to play, the hard part is learning to understand and comprehend it....and that all depends....

3.Nc3 is also possible, simply intending d2-d4 without allowing White ...Nf6 (with tempo) followed by ...e5 (with tempo) followed by ...Bb4. 

I enjoy the Halloween Gambit.  Wreckless but effective in blitz.

I believe your move order is innaccurate.
Nf6 should be played before e5 to get Nc3 out.
By your move order, now that you have commited e5 without them committing nc3 they could play 6.Bd3 and go for a maroczy bind structure with your d pawn forever backwards, and you no longer can place a pawn on e6 to bolster the d5 advance.

KingofWonderland 

@Snacky i use it as well because more than 90% of my opponents do not have a single clue against it and they lose...

Cool, nice job Paulie!

@9thEagle, I literally used those exact moves to defeat someone. My reaction when he took my Queen was, "(*-*) The prophecy has been completed...". Thanks, it was so good.

The daeth attack. There is also the advanced daeth attack.

No, the proper name is the "Daeth opining trap".

*tarp

tahnks

Oooh, I got a great one if no one has said this yet, the Halloween gambit is a very unsound gambit but if you want something to throw at your opponent that confuses them, this is the game to play.

1.b4