as for the burning player, seems cool, could you make a player that has any sort of trail?
Yes, but it might not look as good as the fire trail. For example, using LaserA would just look crappy because you can either put down a thousand emitters behind the player to make a solid trail which would cause huge ghosting and rendering lag, or you can put down the same number as the fire emitter uses and end up with a trail with very visible gaps between lasers.
EDIT:Script Trek II: the Wrath of Kalphiter
Imagine William Shatner looking up and screaming at the top of his lungs: "KAAAAAAALPH!"