With the engine ready, we can begin working on the same effect for the guns, but with a different objective. Here, we will create something like a plasma or ray gun that will be shooting in space. The direction and treatment of the particles will be different, mostly because of the direction of the particles, which will behave like small comets rather than bursts of energy from an engine.
For the guns, our emitter will be a sphere with a reasonable amount of subdivision. Select this object and add a good amount of velocity based on their normals. To make the particles simulate the behavior of a comet, add a force in the X or Y direction of the particles to make the force change all trajectories of the particles and push them in a unique direction.
That's all we need for this particle system. The rest of the process is exactly the same as the particles of the engine. Only the color of the texture should be different and should appear greener.
