Silver Sonic (シルバーソニック Shirubā Sonikku) is the first boss of the Death Egg Zone in Sonic the Hedgehog 2 for the Sega Mega Drive. It is the very first robot modeled after Sonic the Hedgehog creater by Dr. Ivo "Eggman" Robotnik.
In Sonic the Hedgehog 2, Silver Sonic is the first line of defense aboard the Death Egg, and the second-to-last of the Death Egg Zone. It has a sturdy form, is extremely bulky and may have been remote controlled by Eggman, but is combat-capable and would be able to instantly shred Sonic with its saw-blade spikes. In order to defeat it, Sonic must strike it eight times while avoiding its spikes (not easy considering there are no Rings in this zone unless playing an alternate difficulty in Sonic Jam). A similar silver robot was featured in the 8-bit version of Sonic the Hedgehog 2, which was released earlier than the 16-bit game.
This is probably the most difficult Sonic robot to fight as there are no rings at all in the stage. A skilled player can defeat him before he finishes his second attack by following this strategy. When Silver Sonic is first seen flying down, Spin Dash directly under the front of its head and avoid staying below its spikes facing the opposite wall (this is difficult but necessary to prevent him from using his most devastating attack - shooting spikes in mid-jump). Its first attack is always a Spin Dash, so move away and dodge after the fourth hit. Bounce on its head to hit him again (his next attack is always speeding along the ground without spinning). The player should have dealt three hits, so only one more hit should finish it. If the player's second lot of attacks dealt only two hits, wait for its to finish and then bounce on its head again to win. If Silver Sonic is not defeated at this point, it will be significantly harder as his moves become random and he may use his spike shooter during a Spin Jump.