Maria Robotnik (マリア‧ロボトニック, Maria Robotonikku?)
is the granddaughter of Professor Gerald Robotnik, and is the cousin of Doctor Ivo Robotnik,
(better known by the alias Doctor Eggman.)
Before Shadow was created, she was friends with the G.U.N. Commander. Maria suffered from the illness known as "NIDS" (Neuro-Immune Deficiency Syndrome), which was considered incurable at the time.
she is 12 years old, 140cm (4ft 7 ½in) tall, and weighs 32kg (70 lb)
While Professor Gerald's government-sponsored research aboard the Space Colony ARK was initially intended to attain an immortal being, Gerald took on the task to try and save his granddaughter, and named the project 'Project Shadow'. After the final product, Shadow the Hedgehog was created, and he and Maria became best friends. While this was going on, someone had been leaking information that the Biolizard was a potential danger. So, G.U.N. sent troops up there in what they called an "accident", which was really a raid. Maria and Shadow attempted to flee the invading soldiers, but when they couldn't, Maria encased Shadow in an escape pod to escape the ARK. However, Maria was shot by a soldier, and as Shadow watched in horror, unable to help her, Maria asked him to bring hope to humanity and give humans a chance to be happy, before triggering the capsule's escape. This experience scarred Shadow for life, but ultimately his determination to keep his promise to Maria led him to become friends with Sonic.