PLASMOID DISCHARGE

What it is: Self-contained "balls" or "bullets" of plasma that float independent of the main streamer.

Visuals: Glowing orbs that travel along filaments, "beads" on a string, or free-floating fireballs.

Physics: Magnetic confinement or surface tension effects within the plasma stream. 

This is often seen in specific mixes (like Xenon/Krypton <below>) where the plasma "pinches" itself into distinct packets.

The Vibe: Sci-Fi, Alien, "Biological."