Deadlock collar
From Ratchet & Clank wiki
(Redirected from Deadlock Collars)
The Deadlock Collars were collars that were strapped around the necks of DreadZone contestants to stop them from attempting to escape or to blow up contestants if they are boring. Dozens of superheroes were held prisoner in this very fashion, so DreadZone battles remained entertaining. Clank, Big Al, and Venus finally found the codes to disengage the collars, allowing Ratchet to remove his and let it explode in outer space. All of the other superheroes disposed of these collars after they were freed as well.
