Moon Stadium

Moon Stadium (ムーンスタジアム Mūn Sutajiamu) is a Decepticon building in Mare Tranquillitatis on the Moon. It is used for coronation of the Decepticon Emperor.

The Headmasters cartoon
Moon Stadium was to have been the site of Scorponok's coronation as Emperor of the Decepticons. However, it was interrupted by the Autobots who rode Battleship Maximus to the Moon. The battle was itself interrupted when Galvatron arrived in his UFO. The Autobots were forced into retreat and Galvatron used Moon Stadium to announce the reestablishment of his role as "Emperor" and leader of the Decepticons.