Here is a flexible hit impact effect, using a simple script to fire off a bunch of particles at the same time. You can use it by just spawning the prefab and having triggerOnStart = true (although you will have to destroy it afterwards), or better yet, just keep it around and call Trigger() when you need it.
I plan on expanding out the particle multi-emitter to make it more flexible and controllable in the future - this version is just enough to get the impact effect running. I imagine it could be quite useful for other effects too.
It's currently set up to fire off the impacts at the press of the number keys 1 to 4 for gif creation funsies. Probably remove that too (just delete the Update() part).
Any questions or issues, let me know in the comments or on Discord. Always (mostly) here to help!