Sid the Hero/History and App.

​Early Life
Before Sonic Overload, Sid was a normal human who was tired of his boring, mundane life and always wanted travel and see what it was like to be able to help others, see new things and what the world has to offer outside of home and school. He was a big fan of Sonic the Hedgehog ever since he was a pre-teen. His parents and sister, Rana, try to talk him out of this, as they don't want to see him get hurt and want him to grow up from that, but while he respects their reasonings, he disregards their warnings and tells them that one day he will be able to prove to them that traveling outside of his normal life isn't as dangerous as they think it will be, much to their displeasure.

Sonic Overload
Sid continues dreaming about wanting an extraordinary life and how he would one day meet his hero, Sonic, before witnessing Ominous and Dr. Eggman's attack on Station Square.

While trying escape the assault with his fellow classmates, Sid spots a small creature whose got his foot stuck in some rubble before noticing a strange bright light heading towards it. Not wanting it to hit the poor creature, he rushed over and blocked it, eventually turning him into the weird hybrid-like creature he is now.

While rushing back home, he spots his sister, Rana, crying over their parents being murdered by Ominous. Wanting to avenge his parents and other loved ones from Ominous' mayhem, Sid decides to go out on his own, inadvertently leaving his sister to find a safe place for both her and their parents (though she did get some help from Tails and Amy.)

While he was on his way to stop Ominous, he came across Sonic for the first time. Sonic came by to see what was wrong, but after feeling so distraught about his murdered parents, he inadvertently yelled at him to leave him alone. Feeling guilty for that, he tried to apologize to him, but Sonic already left before he got the chance.

After Sonic Overload
After the events from Sonic Overload, Sid and Rana had to move in with their grandparents due to what happened to their parents during Ominous' reign. Feeling devastated and guilty about both the loss of his parents and his selfish actions to others.