Today, "Riko Tachibana Tora Tora Platinum Vol.36" exists in a legal gray area. While the original Tora-Tora-Tora brand folded years ago, the rights have been shuffled between various archive sites.
Both scenarios are perfect for Tachibana, allowing her to display the aggression, confidence, and physicality that made her a star. Her "extremely strong abs" and the stamina they provide likely allowed her to perform these physically demanding scenes with ease.