Nail takes on a very heroic, honorable persona, like Piccolo, his stern when he thinks you are a threat to Elder Guru and Namek. He is the bodyguard of Elder Guru, Nail fused with Piccolo to fight Lord Freeza and to keep the title as the most powerful Namekian. He cares deeply about his Namekian brothers, something he shows greatly during his battle with Frieza as he jumps into the battle with little concern for his own well-being.