Sonic Junior was born on August 18th, 2010, at Green Hill Hospital. His mother, Amy Rose, wanted to do more than just take good care of him. She had to protect him from his dad, Sonic. But one day, Sonic discovers the baby and decides to help.
Sonic Junior's personality has not yet been confirmed. However, he may have one similar to that of his dad, being "like the wind", free-spirited and adventurous. Also, he may inherit a few personality traits from his mother, such as being good-hearted, persistent, optimistic and cheery.