particle rotation problem

How do you make particles rotate random amount on one axis? Is there a work around?
particle rotation.blend (497 KB)
I want them to rotate around the axis from view or the z ( i think the blend is looking down) So you can see arrows but they point different directions.
Thanks

I got it. i just need to rotate my objects in edit mode. I do not know why but the plane has no rotation and the arrows have no rotation.The only way I can make it rotate horizontally is if the group objects are sideways. Go figure.