I'm not sure if they're even making any more episodes of Sonic X... so, probably not.
Episode 67
Episode 67 Of Sonic X (It's Called Teasing Time.)
That's Dark Super Sonic. He's appear on Sonic X episode 67
in the episode sonic turns to dark super sonic, it is only because he is overwhelmed with anger, he becomes normal not to long after.
Yes, he is also in the ORIGINAL EXTRA.
when he gets really mad because the metarex captured cosmo and chris. This happens in episode 67 of sonic x. by mf842 :)
(by the way... its Dark Sonic) When the 7 chaos emeralds are nearby they turn dark and the bring the power to sonic. (Dark Sonic is powerful than super sonic.)
in sonic x you can find it write sonic x episode 18.
Sonic cries in Sonic X episode 52.
If you are talking about the episode of Sonic X where they are filming at a castle, the Episode is "Season 1, Episode 19: Sonic's Scream Test"
In sonic x just one episode i dont think he apears in another
Dark Sonic Was only In The Sonic X Anime.