I just published a new video that goes over every single property available on the Particles2D node in Godot. I walk through each property, what it does, and different ways you might want to change it.
As part of the video, we create a confetti cannon to demonstrate the particle system in Godot. I have a part 2 video coming out soon where we'll create a blood splatter effect, as well as a portal door effect, to further show off how to use the particle system. Enjoy!