Quick scoop: To get the Possession glove in Slap Battles, you usually need to unlock its required badge or complete the specific glove challenge tied to that glove. In the current public guides I found, the closest well- documented related unlock is the Voodoo glove , which requires the Insanity badge earned by equipping Ghost and surviving 60 minutes with its ability active in a public server.

What I found

  • Slap Battles gloves can be unlocked by slaps, badges, special processes, or hidden-map requirements.
  • One recent guide says Voodoo is unlocked by earning the Insanity badge , which requires owning Ghost and surviving for 60 minutes with its ability active.
  • Another source shows a concept for a Poltergeist -style possession ability, but that is not a confirmed live unlock guide.

Best next step

  • If you mean a specific live glove named Possession , the exact requirement may have changed or be listed under a newer badge/glove name.
  • If you mean the glove people are calling “possession,” the most likely current path is the Ghost → long survival badge → unlock glove route described for Voodoo.

Simple route

  1. Get the prerequisite glove, usually Ghost if you’re chasing the possession-style unlock.
  1. Enter a public Slap Battles server.
  1. Activate the required ability and survive for the full timer without dying.
  1. Claim the badge, then check the glove unlock tied to it.

Note

The live sources I found do not clearly confirm a glove officially named Possession right now, so the safest answer is that it may be a nickname, a misread name, or a newer update not fully covered yet.

TL;DR: The most reliable documented possession-style unlock is to get Ghost , survive 60 minutes with its ability active in a public server, earn the badge, and then unlock the related glove.