Just a simple example of a laser beam with particle and trail effects. You can rotate the beam in any direction for maximum friendliness!! (just group layer 2, 4, 5, 6, and 7)
Hope this helps !! If you have Any questions, just ask.
To make the streams coming off, just use the freeform pen, and stroke. Make sure a green color adjustment layer is on top. (Or change the color of the layer!)
[NOTE]: file is about 3 MB