Too bad i didn't play this game in the exact 2012 year, is because i didn't have a Wii and either do a 3DS to play this game, but, it's a good thing that i played it, not in 2012 unfortunately but i started to play this game in 2013, well better late than never.
Eggman Nega, also referred to as Nega for short, is a recurring villain from the Sonic the Hedgehog franchise. He is a descendant of Dr. Eggman from the future, though he was initially presumed to be from another dimension. Silver the Hedgehog and Blaze the Cat are his main nemeses, paralleling Sonic the Hedgehog and Miles "Tails" Prower's negative relationship with Dr. Eggman. While he originally worked together with Dr. Eggman in the Sonic Rush series, he later became an enemy to Eggman in the Sonic Rivals series. The two have a neutral and collaborative relationship in the Mario & Sonic series, though Eggman Nega still does not like Dr. Eggman.