Gojōharyūtsui

The Gojōharyūtsui (伍乗覇竜槌, "Quintuple Supreme Dragon Hammer") is a hammer formed by the Arms Microns Sen, Ex, Geki, Shou, and Go, meant to be wielded by the Swordbots in their combined forms.

Go!

 * Sen (Promotional Arms Micron, 2013-11-09)
 * Ex (Promotional Arms Micron, 2013-11-16)
 * Geki (Promotional Arms Micron, 2013-11-16)
 * Shou (Promotional Arms Micron, 2013-11-16)
 * Go (Promotional Arms Micron, 2013-11)
 * The Gojōharyūtsui is formed from the combination of the five promotional-giveaway Arms Microns listed above. Each component was only available as a free gift with the purchase of more than 3000 yen of Transformers: Go! toys at certain stores. Each Micron came unassembled on a runner, like a model kit.