Ultra Prison

The Ultra Prison is a device from the Prime portion of the Aligned continuity family.

The Ultra Prison is a new Decepticon invention for holding and disposing of Autobots. It creates an impenetrable dome of ultra-refined energon, which slowly wipes the mind of any mech imprisoned in it. Surely it spells doom for Bulkhead?

Fiction

Titan Prime comic

After Bulkhead was captured having destroyed a Decepticon energy store, Megatron took great delight in sticking him in the Ultra Prison. Fortunately Bulkhead had an emergency link with Miko Nakadai's phone, and the Autobots came to help. Bulkhead was found by Miko, Raf and Jack. Raf quickly ascertained how the device worked and, with the help of Jack and some boxes, he reversed the flow of energon, freeing Bulkhead and causing energon to spread everywhere. Optimus Prime finished off the prison by blowing a hole in the floor. The Battle for Bulkhead