After mastering the martial art of Jashin Style, Hedder attempted to force General Kurama Tetsuzan into fighting him by kidnapping and threatening the lives of his allies Keiko and Masaru Nakahara. Tetsuzan eventually showed up and the two fought. Although blinded, Tetzusen was able to kill Hedder.

Hedder was later resurrected by Satan Egos as an Egos Monster with ESP powers. As the newly formed Hedder Monster he still possessed his flail and could regenerate and revive Egos robots. He then resurrected multiple robots to assist him in his fight against Battle Fever Robo. Fortunately for Team Battle Fever, they realized he was controlling the Robos and defeated him, though his eye survived and attached itself to Battle Kenya's boot. It then resurrected itself and went to fight Tetsuzen once again. Hedder revealed he had explosives strapped to his body and threatened to blow them up. Kyutaro, however, revealed a secret freezing spray and froze Hedder Monster. Battle Fever then took the frozen kaijin outside and destroyed him, only for him to escape into Hedder Robot, armed with a flail, a knife, and reinforced armor.