E-10000B

"I am not a machine! I am a robot! There's a difference!"

- E-10000B, Sonic Free Riders

E-10000B is a blue robot that appears in Sonic Free Riders as a playable character in Team Dark's storyline. He appears to be on the same frequency as E-10000G. He also replaces Omega as Team Dark's power character. Near the end of the game, he is revealed to be Metal Sonic in disguise.

History
Shadow and Rouge have just come for the EX World Grand Prix 2 and ask to join. However, Omochao refuses because they need three members in order to participate. Rouge then randomly picks a robot, E-10000B, for their team. After a little while, E-10000B complains that he is tired, but is selfishly ignored by his teammates. Later on, E-10000B malfunctions, breaks down, and appears to explode. This exposes him as Metal Sonic. The evil android challenges Sonic to a race, but loses and flies off angrily. It is unknown if E-10000B was a disguise for Metal Sonic or if Metal Sonic somehow got inside of him.

Trivia

 * E-10000B is the only character in story mode to not be playable in multiplayer mode, being replaced by E-10000G.
 * The "B" in its name may stand for blue.
 * He has the exact same body model type as E-10000R and E-10000G.