The Suika Sojinto (スイカ双刃刀 Suika Sōjintō, lit. "Watermelon Double-Blade Sword") is the default Armored Rider Arms Weapon granted either by accessing Suika Arms, which can only be used while in Yoroi Mode, or via the summoning ability of Kiwami Arms. It is a naginata, which can also be used by autonomous versions of Suika Arms when it is summoned through the power of Sid's Lockseed.