Btwist......

[mad max]

some one can tell me the basic of this movement??becouse today i tryed it.....and i want to get this movement.....tanks to everyone!!!!

[Serial]

Good place to start:
http://www.trickstutorials.com/index.php?page=content/t_btwist

[Trixter-Mike]

max.. i wouldn't recommend you learning 2 moves at the same time.
Just stick to one:
-B-twist
-Gainer

I've seen you almost landing that gainer so why don't you drill that ^^

But for the b-twist...
The tips that i received were:
swing your arms hard from side to side, keep them close to your body (you can even hold your wrists if you want to, and really pull with that shoulder.
That all will twist you around like it's nothing.
And it's important to just do a b-kick, stall a bit, then twist =)