Musashi Tomoe appears across multiple narratives, each with distinct backgrounds and roles.

In the original manga and television series, he is an accomplished judo expert with a strong physique and a hot-blooded, occasionally comedic demeanor. This version pilots the Bear Getter Machine to form Getter-3 and makes a heroic sacrifice that halts a major threat.

The Armageddon narrative portrays him as a serious veteran of the Moon Wars with a military rank, who deeply values comradeship and becomes guardian to Genki Saotome after her father's death. He meets his end valiantly holding off enemy forces in a heavily damaged Getter-3.

Another incarnation in the Devolution narrative is initially known as Benkei Kuruma but uses the name Musashi Tomoe. He is an optimistic teenager with significant piloting skills and a judo background, recruited to battle entities called the Devolved.

The Shin Getter Robo vs Neo Getter Robo narrative features a version defined by immense courage and a strong sense of justice. This pilot single-handedly operates the entire Getter Robo to make a final stand, resulting in a catastrophic explosion that sacrifices his life to protect others.

His physical appearance commonly includes a large, powerful build and short, messy black hair. Attire ranges from casual clothes to specific uniforms like a forest green military outfit or samurai-esque armor, depending on the narrative.

A recurring element across many versions is his ultimate sacrifice, a pivotal moment that profoundly impacts the storyline and other characters, though the specific circumstances differ among the various media.