I've been messing around with FX trails lately, and had the idea of something like the Lava Gun from ratchet and clank. Is there a way to adjust viscosity of trails to make them like molasses?
You'd need something that has continous fire like the inferno. the trail should have no spread a a bit of gravity. To make it look seamless you might be able to use sizeY. I have no idea if that truly is possible so these are just my quick thought abouts it