I have been pondering on how to do this for some time. Basically, I want to create something like this:
With a low-poly art style as well. Here is what I made:
All it does is add an object that rotates randomly and adds smoke (that has animation and motion actuator) every 2 frames or so. Then after 20 frames the object deletes itself. Sure this can all be done much better with real randomness, but the real problem is that it looks a bit weird when moving. Also, I don’t know how I could make that flash. A texture, perhaps. It should be a quick flash, not some battleship gun type of firing.