I know Peblo has a particle effect example for the Bullet object by Akane.
For the bullet object you basicly say
Always--Draw bullet
Always--ShotBullet_deg.
To make it mirror a certain object go into the setup and click "Help" that will set up the object. Then click "sprite" and then say "trace" This will make the particle look like the sprite you have chosen. I dont' know if this helped.