Step 1. Spray Paint Bathroom stall door in a zombie barrier near the rampage inducer in spawn.
Step 2. Shoot the aetherella toy on the ground with a charged gorgofex shot and the toy will then follow you around
Step 3. Go to Pack a Punch room and jump in the beam to make aetherella get stuck in it
Step 4. Jump in the Beam again but try to collide with aetherella, she will then start to follow you again except this time she'll be killing zombies with lazers! No idea how long this lasts but she didnt disappear after 4ish rounds