dunks

can i do between the legs dunnks, behind the back and sothing fancy, and how???

also is ther any way of using freestyle with a keyboard??

You can do the behind the back dunk if you use a player with the appropriate rating and dunk package. There's no way to force it though.

You can use some freestyle moves with the keyboard, but it's very limited. You can only use freestyle from the triple threat position, you can't perform any freestyle dribbling moves.