Though the highly influential manga series, and resulting TV show, are known for non-stop action and fighting, Dragon Ball started out as a comedy strip reminiscent of Akira Toriyama’s early work, Dr. Slump! Viz’s English versions have gone through various levels of censorship over time to adjust to the low level of sexuality that most Americans expect of kids’ books. Except, most of the characters themselves don’t understand sexuality, and that’s the charm of it; it’s best enjoyed (probably by kids as well) in its pristine form…if you can find it! Tim, Kumar, and Mulele review.
Visual censorship comparisons after the jump (NSFW but probably safe for Japanese kids):