he is ten
sonic is older than manic in sonic underground
Manic and Sonia are Sonic's brother and sister in Sonic Underground only.
no, he is only in sonic underground.
I believe you mean Manic The hedgehog. Manic is Sonic's brother in Sonic Underground.
In Sonic underground they are
Manic from the 90s cartoon Sonic Underground.
Sonic does not have siblings in the main-canon, but in the old DIC cartoon, Sonic Underground, he has a brother named Manic and a sister named Sonia.
He is Manic, Sonic's brother in "Sonic underground."
They only appear in sonic underground
a blast from his drums
Sonia and manic were created for sonic underground specifically and will not appear in any later shows or games. Sonic x and sonic underground follow entirely different cannons and plots. His medallion was also created only for the underground show. The resistence, the medallion, Sonia and manic never existed in sonic x, and never did exist anywhere besides underground. Since underground was cancelled, we will most likely not hear from them again.
sonia is sonic's sister in sonic underground you will find out about that and manic the hedgehog is sonic's brother