I remember when I first saw this show and thought it would be a long series. Turns out it was an OVA, but a very good one to boot. What could be more awesome than seeing Mazinger Z and Great Mazinger together? A new bigger and powerful Mazin to fight the good fight!!
Mazinkaiser tells the story of the final conflict between Kabuto Kouji and the forces of the evil Dr. Hell and Baron Ashura. It all begins when Dr. Hell sends Ashura to attack Japan with an army of Mechanical Beasts only to be met by Mazinger Z(piloted by Kouji), Great Mazinger(piloted by Tetsuya) and Aphrodite A(piloted by Sayaka) as well as Boss. Things look like all will be well until Mazinger Z is beaten and heavily damaged as well as Great, who is caught off guard when trying to aid Z. Aphrodite A and Boss also get a heavy beating. Finally Ashura orders one of the Mechanical Beasts to forcefully take out the Hover Pilder off Z and the last we see of Kouji is when he is thrown to the unknown in the Pilder while Ashura takes Z away.
Back at the Photon Lab, repairs are being made to Great and the others while a search is launched to find Kouji. Meanwhile, Dr. Hell finally completes modifications to Mazinger Z and sends Ashura to destroy the Photon Lab. The attack begins with Tetsuya taking a still damaged Great out to battle only to be overpowered by the Mechanical Beasts and the Ashura Piloted Mazinger Z. After leaving Great more damaged than it was before, all seems lost when Ashura is about to use the Breast Burn of Z when he is interrupted by a powerful blast that destroys the Mechanical Beasts. Everyone is in shock when the silhouette of the apparent savior appears as Dr. Yumi (Sayaka’s father) identifies it to be Mazinkaiser. Ashura wastes no time to counterattack Mazinkaiser but only to find out that Zs weapons are useless against it. Afterwards, Kaiser literally beats Z to pieces and Ashura has no choice but to retreat. The battle is over and everything seems ok until Kaiser throws the destroyed Z into the Photon Lab and proceeds to use his Turbo Smasher Punch in the process.
The first episode ends as Great Mazinger tries its best to stop Kaiser but to no avail until Sayaka and company arrive and yell out to the pilot of Kaiser who is none other than Kouji who is unconscious inside it. Throughout the rest of the 7 episode OVA we see how the forces of evil try to defeat Kouji who is mastering Kaisers power and the ensuing battles that happen in the process. Mazinkaiser does not disappoint since it maintains the feel the original Mazinger series had with the action, comedy and suspense. The animations are very well made for the entirety of this short series. Overall, if you are a fan of Mazinger or like anime that features Giant Robots, then give Mazinkaiser a try!