How to make bullets (Already have downloaded) try to kill my actor?

So hey guys I am a newbie! xD I was wondering how can I make bullets come out of the right side of my screen trying to kill my player?

http://www.stencyl.com/help/view/crash-course-invaders-1/

The Crash Course is a good place to start, we recommend all newbies go and seek the knowledge it has to offer.

Yes I was watching a youtube video about that.