How to do player run dust effect like this ?

Question

Is it particles or shader effect ? How to create a similar effect ?

here is the author page: http://ludumdare.com/compo/ludum-dare-35/?action=preview&uid=3479

Answer 1

Use Particles2D, attach it to your player, and write a script using $(what you named the particles2D).emitting = true for when you are pressing left and right, and $(name).emitting = false when you are not. Look up a tutorial on particles2D to adjust how they look and work, and you should end up with something similar.

also make sure to turn off local cords