Movie
Description
Master Roshi, also frequently referred to as the Turtle Hermit or the Genius Turtle, is a pivotal character in Dragon Ball Movie 1: Curse of the Blood Rubies. His background is that of an ancient and immensely powerful martial arts master who has lived for hundreds of years. As his title suggests, he resides on a small, isolated island in a turtle shell-shaped house known as the Kame House, living a reclusive life focused on training and leisure. He is the creator of the iconic Kamehameha wave, a technique that concentrates ki into a powerful energy blast.

In terms of personality, Roshi is a complex figure who balances immense wisdom with significant, often comic, flaws. He is a jovial and laid-back individual who enjoys reading magazines, watching television, and flirting with attractive women. This perverted side of his nature frequently leads to humorous situations. Beneath this frivolous exterior, however, lies a deeply wise and principled martial artist. He is noble, kind, and genuinely dedicated to the preservation of peace and the responsible use of martial arts. His motivation stems from a sense of duty to ensure that powerful techniques are taught to those with pure hearts, preventing them from falling into the hands of evil.

Within the story of Curse of the Blood Rubies, Roshi's role is as a mentor and a crucial ally. While Goku is the central protagonist seeking the Dragon Balls, his path eventually leads him to the sea, where he meets Master Roshi. Roshi's role is to provide the heroes with the power necessary to confront the main antagonist. He takes Goku under his wing, offering him a place to stay and, more importantly, demonstrating the Kamehameha wave. Although Goku learns the technique after only one observation, it is through Roshi's teaching and example that the young Saiyan acquires the decisive skill used in the final battle.

Key relationships define his place in the narrative. His most significant connection is with Goku, whom he recognizes as a gifted but undisciplined boy with extraordinary potential. He is also linked to the film's other heroes, though more distantly. The journey to Roshi's island is made by Goku, Bulma, and Oolong, and it is Bulma who uses her technological inventiveness to trade a rare item for Roshi's help.

The character does not undergo a significant personal development arc within this single film, as his role is to act as a static symbol of ultimate martial arts mastery and ancient wisdom. Instead, his function is to catalyze Goku's growth, providing the young hero with the tool needed to overcome the primary obstacle.

His notable abilities are legendary. He is the inventor of the Kamehameha wave, a technique of tremendous power that he can perform with relative ease, as seen when he uses it to extinguish a fire on a mountain. Beyond this signature attack, he possesses superhuman strength, speed, and durability that far exceed normal human limits. He has also developed a wide range of other martial arts techniques, including the powerful Bankoku Bikkuri Shō, or Thunder Shock Surprise, which paralyzes opponents with a bolt of electricity. His centuries of experience grant him an unparalleled strategic mind in combat. While he is not a main combatant in the final confrontation with King Gurumes, his presence and his teachings are the direct source of Goku's victory.