Choju Gattai OhBlocker (超獣合体オーブロッカー, "Super-Beast Combination OhBlocker") is the second major battle robot of the Ohrangers, arriving mid-series in Chōriki Sentai Ohranger as a powerful reinforcement alongside Ohranger Robo. Rather than assembling from five vehicles, OhBlocker is built from five self-contained humanoid robots – the Blocker Robos – whose heads are styled after the visors of the Ohrangers' helmets. Power Rangers Zeo viewers know him as the Super Zeo Megazord, formed from the five individually piloted Super Zeozords (I–V).

The combination is wonderfully unconventional: Red Blocker forms the torso, Blue Blocker the waist and upper legs, Green Blocker the lower legs, Pink Blocker the feet – while Yellow Blocker supplies the head, shoulders and both arms in one go. OhBlocker fights with the Twin Blocken Swords, a pair of blades it brings together for its Twin Blocken Crash finisher, creating a single massive energy blade to cleave enemy Machine Beasts in two.

The DX toy, Choju Gattai OhBlocker, was released by Bandai Japan in October 1995. The set contains all five Blocker Robos, each of which transforms into its body segment and locks together into the finished robot, plus the signature yellow Twin Blocken Swords. As was typical for the DX line of the era, die-cast parts give it satisfying heft and a stable stance. Bandai America released it in 1996 as the DX Super Zeo Megazord, alongside a smaller, more play-friendly "Sword Swinging" action version and the five Blocker Robos sold separately as Super Zeozords I–V.

A real treat for combination fans: OhBlocker doesn't stand alone – it can link up with Red Puncher and the carrier mecha King Pyramider to form even larger battle formations, a perfect showcase of the "everything combines with everything" philosophy of the Ohranger era.