I chose Gamma because of my favorite character in the Sonic the Hedgehog universe. I've been going by GammaFangirl in various online communities, but Gamma was just easier to type. When I went into those communities' chatrooms, everyone just called me Gamma anyway.

In my interpretation of the Sonic Universe, robots like Silver Sonic, Mecha Sonic, and Metal Sonic belong to the M-Series. For example, I give Metal Sonic the serial number M-03 since I see him as the third robot in the series. Proto's serial code is M-00 because he was a prototype for this line of robots. Originally, his personality was rather robotic. He'd announce any move he made before making it. I quickly decided that his current personality and mannerisms would work better as they'd give Eggman more of a reason to abandon him.

The first time I used Gear, he was an Otaku tech nerd hedgehog whose real name was Gerald Ishida. That incarnation of the character died along with the RP he was in. Gear resurfaced as Gerald Marconi, a car mechanic and junk collector who serves as a bit of a foil to Proto.