I made this sword spinning effect, and even on velocity parallel it still faces the camera. Any idea why?
Cause that’s how the particles work
Yeah, but how do i make it not do that 
You’d have to make your own particle system since the built in ones are just hard wired to do so otherwise theyd be scaling and disappearing from certain angles since they’re just a flat image
well darn, i guess i’ll just make this work then
A 3D Particle System, which may be what you are looking for!
I have not used this yet, but you could probably find some use for it in your game, and maybe even fix your problem! 
I tend to make the particle move upwards by 0.01 speed and then use velocity parallel. I’ve had no problems getting particles to do what I need them to. Maybe post a video or a picture so we can visualise what you’re expecting and what you’re seeing.