TV Special
Description
Shiro Tokisada Amakusa originates from the historical figure who led Japan's Christian Shimabara Rebellion. Following his execution by the Tokugawa shogunate, his displayed head served as a warning against insurrection. In the Samurai Shodown continuity, the dark god Ambrosia resurrects Amakusa, binding his spirit to the body of Shinzo Hattori, son of Hanzo Hattori. Transformed into a vessel of vengeance, he seeks chaos and destruction to forge a new world order. He steals the Palenke Stone, intending it as a conduit to summon Ambrosia into the mortal realm. Warriors like Haohmaru thwart his plans and defeat him, preventing the god's manifestation.

Later, Amakusa's spirit fractures into distinct halves: a benevolent entity embodying his original righteousness, mercy, compassion, and devotion to Christian themes of sin and salvation, yet struggling to forgive the Tokugawa lineage; and a malevolent entity, Aku Amakusa, consumed by ambition, hatred, and unrelenting malice. Devoid of empathy and driven by psychopathic urges for domination, Aku Amakusa orchestrates terror from Shimabara. He steals the corpse of the warrior Zankuro to wield as a weapon and abducts the kunoichi Hazuki Kazama, exploiting her life force to sustain his castle and control Zankuro's bloodlust. Aku Amakusa seeks reunion with his benevolent half solely to regain full power. Kazuki Kazama, Hazuki's brother, defeats him, collapsing his castle and freeing Hazuki. Zankuro then destroys the malevolent spirit.

The benevolent Amakusa persists, tethered to Shinzo Hattori's body but diminished in power. He intermittently intervenes to aid others, such as saving characters from threats like Mizuki Rashojin, though his reduced strength leads to further defeats.

Amakusa wields supernatural abilities including levitation, teleportation, multi-hit slap attacks, and fiery demon projections. His fighting style centers on manipulating a levitating gem for long-range assaults, leaving him vulnerable in close combat. His design often reflects effeminate features, occasionally causing gender confusion, though some depictions present a more masculine appearance.