The Hyperion (ハイペリオン Haiperion) was the Autobot flagship in the earlier centuries of the war over the Mini-Con robots.
The Hyperion was used by the Autobots to cover the escape of the Mini-Con starship Exodus from Cybertron. Backed up by numerous smaller starfighters, it went up against the Decepticon flagship Doomsday, which was trying to intercept the escaping Mini-Cons. What happened to it after the Mini-Cons got away is unknown.
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In the Beast Wars of Aurex 615.03 Epsilon, the Hyperion was dispatched from Cybertron to Alpha Q's universe with several Autobot-aligned Mini-Con teams aboard.
Known liar Sideways claimed that he and Skystalker used to fly the Thunder Arrow so far up the Hyperion's afterburner so that they would know who Optimus Prime was powerlinxing with.
The Hyperion was the Autobot flagship in the earlier centuries of the war over the Mini-Con robots. Its appearance is 3D CGI.
- The name Hyperion comes from Micron Densetsu Year Book 2003 and other sources; the ship was not named in the English dub. It's quite possible it wasn't named in the Japanese episode either. Its name is used in Transformers: Universe.