Luigi is Mario's younger brother and one of the most beloved characters in the Mario franchise. As a plumber, he often joins Mario on adventures to rescue Princess Peach and defeat the persistent villain Bowser. Known for his green hat and shirt, Luigi possesses a kind heart and a strong sense of justice, even if he sometimes feels overshadowed by his older brother. He has his own unique abilities, including higher jumps and a powerful shake attack, making him a valuable ally. Although he can be a bit timid, especially in scary situations, his bravery shines through when it matters most. Luigi is also known for his love of ghost hunting in the Luigi's Mansion series, showcasing his diverse skills and interests beyond plumbing.