Choujuu Gattai OhBlocker (超重合体オーブロッカー Chōjū Gattai Ō Burokkā, "Super Heavy Combination OhBlocker") is the second mecha used by the core Ohrangers, formed from the Blocker Robos. OhBlocker wields the Twin Blocken (ツインブロッケン Tsuin Burokken, portmanteau of "Block" and "Sword" (剣 Ken)) swords with which it performs the Twin Blocken Crash (ツインブロッケンクラッシュ Tsuin Burokken Kurasshu), bringing them together to create a giant energy blade that it uses to bisect giant Machine Beasts.