Instantiate 2D prefab

I have a 2D prefab with a box collider 2d, rigidbody2d and a script.
Then when i press “SPACE” i do this :

	Rigidbody2D att2;
	att2 = Instantiate (att, tra.position,tra.rotation) as Rigidbody2D;

And then, the prefab (att) is instantiated in the scene but in goes up… the y axis change but i don’t know why…
And then what can i do to move the object to the right or left??
The object is an attack to throw :slight_smile:

Thank you

Is there a collider at the world location of att? Sounds like once the object is instantiated it realizes it’s within the bounds of another collider and it immediately pops out.