Sonic and Knuckles fight with purposely bad dubbing!...Weirdly enough it's better than 4kids.
Voices by Nicknyte.
Sonic X by Sega/TMS
Music (Megaman Zero) by Capcom.
EDIT Jan. 25th, 2008:...
Sonic VS Knuckles (Cracking Knuckles), Part 1
No copyright infringement is intended. Sonic X belongs to 4 Kids Entertainment, TMS Entertainment and SEGA.