How do I accomplish this effect?

0:02 New barrage VFX in YBA is way too "OP" - YouTube

Various parts but 1:42 is a good example [GPO] DEMON STEP - YouTube

How do I make that effect with the lines radially going outwards? It looks really clean but I don’t know how to do it. Is it particle emitters, meshes, etc? An explanation would be very helpful