Major Heinz functions as deputy commander in the Die-Die Gang, an alien invasion force under Emperor Dongolos that targets Earth. He occupies a significant leadership role, overseeing operations and commanding giant Devil Mechas deployed against the protagonist. These mechanical adversaries, including units like the Draudas, are engineered specifically to combat Earth's defenders.

One reference book published during the anime's original broadcast offers specific insights into his background and antagonistic role. This source stands as a key documentation point for his character due to the limited availability of series episodes.

Heinz operates under Emperor Dongolos's direct authority, participating in the gang's strategic efforts to conquer Earth through large-scale destructive schemes. These include infrastructure sabotage and deploying mechanized threats against populated areas. The available materials do not elaborate on his specific actions or personal motivations within these operations.

The character does not appear in other media formats such as movies, OVAs, or spin-offs. Accessible sources similarly do not cover his ultimate fate within the anime series.