Yes, but he only shows up once in the entire Sonic X series.
Episode 67 Of Sonic X (It's Called Teasing Time.)
Third.
Episode 67 "Teasing Time" even if it was for a short while. Sonic the Hedgehog RULES!
Sonic turns to Dark Sonic in episode 67 (3rd season). It only just shows 5 seconds of his power, but....... Hope this answer helped. Oh, and the episode name is "The Black Trap" or "Teasing Time".