Before anyone responds this is obviously INCREDIBLY biased since i am an avid Tekken fan.
Dragons name is Azazel.
No you can't play as Azazel.
(if anyone cares the notation is as follows. Up=U, Down=D, Back=B, Forward=F and combinations of that for up forward UF, Left punch=1, Right punch =2, Left kick =3, Right kick=4, im sure the rest can easily be worked out)
Whoever was talking about the game being slow and sluggish, the game runs at 60fps and there are moves which connect in under 12 frames of being pressed. To counter these attacks you have to press a combination of buttons according to the attack used by your opponent, in under 10 frames you have to see, think and respond in time with the attack connecting.
Tekken takes incredible reflexes and anticipation skills to succeed in higher level play. e.g. simply to counter a throw you have to read whether the enemy is extending their left, right of both of their arms in the amount of frames you get before the throw is executed and press either 1, 2 or 1+2 depending on which it is.
Due to playing on my friends xbox which is banned from xbox live i have had to restart scenario mode after i had fully completed it, it can get a bit boring but you can power through most of it very easily with just a basic move set e.g. with lars, the starting character all you have to do is combinations of B+1+2, UF+4, B+3+4, DF+3 and that is enough to be able to finish the game in 1 sitting. The only replay value is Achievements/Trophies if you are into that sort of thing or getting clothing items much faster than normal play.
Of course, me not having a playstation 3 and therefore being unable to get tekken 5 DR the on-line play is a huge improvement which i absolutely love there are a lot of other things and i could go on and on but i don't want this post to turn into a very poorly structured review in the comments of a review so im gunna leave it here.
PS: Lars, King, Kazuya, Jack-6, and Lili are the best ^_^