I am making a game, in similar graphics display as Geometry Wars. In Geometry Wars (noticeable in the title, as well as when you blow up an enemy), there are these colorful explosions that emit, then fade away at the end. An example is this video. I know very little about particles. I already have an effect that will make objects glow (Bloom, if you didn't know). I would like to know if there is an Xna library that can do this effect. If not, is there code that I can use? Or some documentation that I could implement?
And also, could the code for the explosions be modified slightly to simulate the stream effect that the ship emits when it is moving around?