Maria Balthasar is a key character in the video game Xenogears, which is known for its deep narrative and complex themes. She is the daughter of Nikolai Balthasar, a brilliant scientist who was forced to create powerful war machines. Maria is a Gear pilot, controlling the formidable Seibzehn, a giant humanoid robot. Her character is driven by a strong sense of justice and a desire to stop those who misuse her father's creations. Her story arc involves themes of family, sacrifice, and courage, making her a memorable part of the game.