stairs in 2d platformer unity 4.3

Unity Engine
1

I have a 2d platformer, I use rigidbody2d for the player.

I want to make stairs but I cant do it realistic. what I did was to create a rotated boxcollider2d, the problems are:

  1. when the players walk down the stairs, it’s not really like he’s walking down the stairs, it’s more like he’s skipping them or jumping over the stairs.
  2. when the player stands on the stairs and there is no horizontal keyboard input, the player is sliding down the stairs.
  3. If I move the player up the stairs with the key and then I release the key, the player makes a small jump.

Any help?
Thanks!

2

someone? solution?