After several defeats from the Mazinger Z, Dr. Hell has Count Brocken come in for reinforcements. With Brocken and the Iron Crosses added, Hell's forces became more formidable; but even then there was not much success against the Photon Power Labratory. At times, Dr. Hell forced Brocken and Baron Ashura to work together. This was not usually much of a success either, Ashura and Brocken's arguments caused a lot of problems on the battlefield. Dr. Hell usually had to break them up and punish them.
Soon with Archduke Gorgon appearing, Brocken became very submissive. When Ashura started to show backbone against the giant to regain his honor, Iron Crosses loyal to Brocken tried to kill Ashura. Brocken did not approve of this and tried to stop it, but Ashura had already killed them (something Brocken did not believe). When Ashura died in a final attempt to defeat the Mazinger, Brocken payed his respects to his co-worker while mourning his death.
When the Mazinger team attacked Hell's island fortress, Brocken tried to keep them distracted with any remaining Mechanical Beasts while escaping with Dr. Hell. Ultimately, he is killed along with his master when the Mazinger attacked their vehicle.