Oneshot

Skull Man

They took his family, they took his face, and they took his soul. Locked between the lethal but gorgeous assassin Maria and the mutant Spider Man, the Skull Man digs into the conspiracy that gave birth to his powers and those of his partner, Garo. Haunted by his past, he will not let them stand in the way of his revenge. 
(Source: Tokyopop) 
Multiple Shotaro Ishinomori heroes make cameos, Kamen Rider 1 and Joe Shimamura (Cyborg 009) have the most. Other cameos include Himitsu Sentai Goranger, Kikaider, Inazuman, and Robot Keiji.