A few things I found odd about the Eggman.

He doesn't have eyebrows.

The size of his moustache changes size throughout the games.

Eggman is a Power character in Sonic Riders, though it's probably due to his enormous size.

He can run faster than Super Sonic, and equally as fast as Sonic in Sonic Adventure 2.

He has no ears.

Zezima wrote:He can run faster than Super Sonic, and equally as fast as Sonic in Sonic Adventure 2.

He has no ears.

He has ears. They're just really tiny.

http://images2.wikia.nocookie.net/sonic/images/d/db/Unleashed_eggman.png

Crystal Chaotix 3 wrote:

Zezima wrote:He can run faster than Super Sonic, and equally as fast as Sonic in Sonic Adventure 2.

He has no ears.

He has ears. They're just really tiny.

http://images2.wikia.nocookie.net/sonic/images/d/db/Unleashed_eggman.png

And in Sonic Adventure. But watching him run in Sonic 2 was hilarious.

Crystal Chaotix 3 wrote:The size of his moustache changes size throughout the games.

Well, that's actual fine, considering how mustaches work and grow and all. Plus, he'd probably want to trim it down and let it grow out occassionally.

Zezima wrote:He can run faster than Super Sonic, and equally as fast as Sonic in Sonic Adventure 2.

Technically it's as fast, not faster.