Silver Sonic is a robot created by Dr. Eggman in the likeness of Sonic the Hedgehog, but much larger, bulkier, and covered in silver armor. Eggman has employed various models over the years in his efforts to defeat his Hedgehog nemesis.
Battle Aboard the Death Egg
The earliest known Silver Sonic prototype was actually not activated until after the first one was destroyed. The first encounter with a Silver Sonic model was aboard the Death Egg in the skies above Westside Island. After Snively fled the Wing Fortress via the Egg Jet, Tails gave Sonic a lift with the Tornado, and Sonic caught up the the fleeing doctor. After arriving at the Death Egg, Eggman unleashed this version of Silver Sonic to battle Sonic, who surprised Sonic with an attack from behind. Sonic quickly made work of the Super Badnik as, although it was much bigger and stronger than Sonic, it was too slow to keep up with the Hedgehog's speed. (StH: #289)
Relying on the Prototype
Following Dr. Eggman's defeat aboard the Death Egg along with the destruction of the second Silver Sonic model, Dr. Eggman attempted to throw together what little he had left in an effort to defeat Sonic the Hedgehog in an all new plan where he kidnapped Sonic's friend Tails. The Silver Sonic Prototype appeared to oppose Sonic the Hedgehog in the Scrambled Egg Zone, where he was betrayed by Breezie the Hedgehog; however, Sonic was able to overcome the metallic menace. (VG: StH2-8b), StH: #269)
Another Silver Sonic, serving as a Badnik commander, arrived at the hidden construction site of the Knothole Freedom Fighters' Sky Patrol after several of its underlings discovered the craft and engaged Rotor Walrus, Sonic, Tails, and Big the Cat. The titanic robot swiftly moved in to attack the heroes, but its Spin-Dash was intercepted by Big, who threw it up into the range of the Sky Patrol's defensive turrets, allowing Rotor to cripple it with a devastating shot. (StH: #253)
First Body (Silver Sonic - Prototype Version)
The prototype Silver Sonic was about the same size as Sonic himself, but equipped with a jetpack and crushing claw hands on the end of extending arms. This Silver Sonic also appears to possess some degree of size manipulation as he appears to be massive in first set of panels of the flashback and Sonic's size in the second set.
Second Body (Silver Sonic)
This Silver Sonic is modeled after Sonic the Hedgehog and his abilities, but is also much larger. The robot model is bulky but combat-capable with saw-blade quills, rocket boosters, and a metallic spikeball-version of the Spin Attack.
Newest Body (Silver Sonic - Badnik Horde Commander)
Silver Sonic is massive and heavily armored, strong enough to rip through dense jungle vegetation. Being based on Sonic, it has the ability to perform a Spin-Dash and possesses great speed.
- Because Silver Sonic was in both the Genesis and Game Gear version of Sonic 2, this is technically the original mechanical Sonic, as its debut predates Metal Sonic.
- The prototype Silver Sonic is based on a boss from the 8-bit version of Sonic the Hedgehog 2.
- The prototype Silver Sonic and the mainstream Silver Sonic are actually unrelated in the video games - the prototype was the original Silver Sonic while the gigantic Silver Sonic is known as "Mecha Sonic"
- It was confirmed on Bumble cast that the prototype Silver Sonic was used because there was nothing left.