Machine Great Marshal is a mummy-like cyborg Majin who originates from Egypt and serves as a high-ranking officer within the Delza Army, the villainous organization that emerges after the fall of Black Satan. Created as part of the Delza Army’s roster of ancient demon descendants, Machine Great Marshal is distinguished by his bandage-wrapped, mummy-like appearance and his cold, calculating demeanor. His primary motivation is to prove his superiority within the organization and to eliminate Kamen Rider Stronger, the hero who has repeatedly thwarted the Delza Army’s plans. Dissatisfied with General Shadow’s failure to capture Stronger, Machine Great Marshal stages a coup, overthrowing General Shadow and taking command of the army’s forces alongside his two loyal subordinates: Commander Jishaku and Armored Knight. This act of betrayal demonstrates his ambitious and ruthless nature, as he seizes power without hesitation when he sees an opportunity.

In the story, Machine Great Marshal serves as the secondary antagonist during the final story arc of Kamen Rider Stronger, appearing in episodes 35 through 39. His leadership of the Delza Army puts him in direct conflict with Stronger and the returning six previous Kamen Riders, who unite to confront the organization. Machine Great Marshal’s role is that of a formidable field commander who orchestrates attacks and battles the heroes, relying on his combat prowess and his subordinates to carry out his strategies. His key relationships are primarily antagonistic: he views General Shadow as a failure and usurps his position, while he treats Commander Jishaku and Armored Knight as his enforcers. His relationship with Kamen Rider Stronger is one of intense opposition, as he aims to destroy the rider to secure his own legacy within the Delza Army.

Throughout his brief tenure, Machine Great Marshal shows no signs of internal development or redemption, remaining a steadfast villain driven by ambition and a desire to prove his strength. His notable abilities include the physical capabilities typical of a cyborg monster—enhanced strength, durability, and combat skills. As a mummy-themed cyborg, he likely possesses resilience and possibly the ability to use bandages or ancient techniques in battle, though the specifics are not widely detailed. In the climax of the arc, Machine Great Marshal meets his end in battle against Kamen Rider Stronger and the other riders, ultimately being destroyed and contributing to the final downfall of the Delza Army. His legacy is that of a usurper who briefly rose to power through treachery but could not overcome the combined might of the Kamen Riders.