how to tame:

step one: find a jellyfish that has a high level (aka a high killcount)

step two: take a bite out of it since it holds biotoxin

step three: fall asleep

step four: dream that you tamed the jellyfish

step five: because the jellyfish killed you, you are in the dream realm forever, so you tamed it in the dream realm.

step six: enjoy the jellyfish

step seven: there is no step seven stupid idiot

never gonna give you up