Dark Sonic Was only In The Sonic X Anime.
Sonic Heros
you can't
Sonic heros.
At ending level And with Hacks.
Sonic Heroes does not have a sequel yet.
No there was not even a Sonic Heroes 2
Because they are working on sonic heros 14
Yes, on the secret last boss.
get all gems and fight last boss
you can only use it on the last story
Maybe asking a hacker this question ¬¬
No, Sonic Heros came out in 2003 and the PC version out in 2004. If the sequal was made, it would be made in either 2005, 2006, or 2007. Sonic Heros 2 could never come out.