The Combination Armament Nega DenGasher (連結武装ネガデンガッシャー, Renketsu Busō Nega Dengasshā?) is modeled after a bullet train and is Nega Den-O's primary weapon. The Nega DenGasher is composed of four separate parts that, when not in use, are attached to the Den-O Belt. As with Den-O, Nega Den-O can use the Nega DenGasher in all four of its combinations while in Nega Form. And as with Nega Den-O's armor, the Nega DenGasher's blade has tribal markings.