LOst of violence. On Cartoon Network it was rated Tv-14-V-S and on adult swim the same. Little Goku is seen alot with his franks and beans flopping everywhere, sometimes very close. Lots of punching through bodies, blood, and scary moments. Some smoking when Hercules prepares for a match. Sometimes you see drinks that can clearly be notified as wine.
All of this is blocked in the Nick version (Fans of the series call it the "Fake" version) and blood is turned into sweat-looking colors. Any body-holes and gore are cut out, too- The Camera instead zooms to the victim's face.
Over all, The Kids-friendly version is TV-Y7-FV, and the real version is TV-14-V-S.