Not really
Sonic Shadow Silver Knuckles Metal Sonic Amy
you have to beat the story of sonic, tails or knuckles.
no, but you can unlock knuckles, amy, and cream.
Sonic, Tails, Knuckles, Mr. Egghead
There is no red hedgehog in Sonic the Hedgehog. You either mean Knuckles the echidna, the second player Sonic from Colors and several bootleg games, or a sonic fan character. Shadow is a black hedgehog with red markings, but he's probably not who you saw.
Sadly, no. you can only use Sonic, Shadow, and Silver.
Espio is playable in Sonic heroes,Knuckles Chaotix,Sonic the fighters,Shadow the hedgehog and Sonic Rivals 2.
SEGA officialy rejected storyline of game Sonic the hedgehog 2006.Also they accepted that Rouge likes Knuckles.
Knuckles came from angel island where sonic hedgehog is green hill.
well its been confirmed she has a simple crush on knuckles while she has also developed feelings for shadow
Yes you can by completing all of the adventure modes of Sonic, Tails, Knuckles, Cream and Amy.
In "Sonic X," Sonic's friends include Tails, Knuckles, Amy Rose, and Shadow the Hedgehog. Tails, a young fox, is Sonic's loyal sidekick and inventor. Knuckles, the echidna, is the guardian of the Master Emerald, while Amy is a pink hedgehog who has a crush on Sonic. Shadow, a rival with a mysterious past, often plays a complex role in the series.