Sonic Advance 3 is a 2004 platform video game developed by Dimps and published by Sega and THQ for the Game Boy Advance. It is part of the Sonic the Hedgehog series, and the sequel to Sonic Advance 2. The game stars the characters Sonic, Tails, Amy, Knuckles, and Cream as they seek to keep Doctor Eggman and his robot assistant Gemerl from building empires on each of seven chunks Eggman has divided the Earth into. (wikipedia.org)