some questions

1. About behaivors:In my game I want to use a behaivor like the 8 direction one, but with only 4 direction (up, down, left, right). In the 8 directions, when you press up and right in the same time, for exemple, the sprite go in diagonal.

2. Where can I to find a newbie tutorial for me? I maked the ghost shooter tutorial, bur i want a aplication tutorial, not a game. Sure, have a part of tutorials on forum, but I can't to find it.

you can tell the 8 Direction behavior how it should behave - there is a property called 'Directions' where you can set it to allow only 4.

you can find tutorials (<- link) on the wiki.