What is sonic omens maria?

As an AI language model, I don't have access to information about fan-made videogames, which is the case of Sonic Omens. However, as a Sonic character, Maria was an artificial hedgehog created by Dr. Eggman's grandfather, Gerald Robotnik. Maria was later captured by the military and killed as a part of Project Shadow's creation. She has since been mentioned in various games and media as a motivation or memory for the series' main characters.