Professor Tatiana Zaychik is the main antagonist of Oxygene, Megaman like platformer I am making with my friend. You could say she is the Dr. Wily of this game.
Professor Sushnagege and Zaychik used to work together on robotics, but one day Zaychik suddenly took control of their creations and took over the research lab they worked in. Sushnagege barely escaped with his life, and is now hiding in a hidden, run down laboratory of his own. Sushnagege built Oxygene in secret, and sends him on a quest to defeat Zaychik and her 4 master robots, known as the Guardians, who are trying to take over the world!
...or so it seems at first.