Particle effect showing only on one side of mirrored object I'm trying to create a fur particle effect on sonic the hedgehog, and I'm using weight paints to keep it in the areas I want. 

Problem: I can only get the hair effect to show up on certain random areas on model, and only on one side.

I'm using a mirror effect to keep model symmetrical, but hair only shows on one side of the mirror.

I'm new used Blender, so I don't know what all the settings for the particle effects do.

Whats going on and how do I fix it?

https://drive.google.com/file/d/0B3nnI6YdPSHcN19NZTdzRlk2b3c/view?usp=sharing
Have the mirror modifier be on top of the particle system.



Use the arrows top and down arrows on the right of the modifiers to re arrange the modifier stack.



Then in the particle system enable Use Modifier Stack