Neko Majin

Neko Majin (ネコマジン) is a series of one-shot manga written and illustrated by Akira Toriyama. Spanning eight total installments published irregularly between 1999 and 2005 in Weekly Shōnen Jump and Monthly Shōnen Jump, they were collected into a single kanzenban volume in April 2005 by Shueisha. Its later portion is named Neko Majin Z (ネコマジン Z) and is a self-parody of Toriyama's Dragon Ball.

Plot
The series revolves around the adventures of the Neko Majin, a race of cat-creatures who enjoy practical jokes and martial arts. At least two use Dragon Ball-style attacks such as the "Nekohameha", while one in particular, named "Z", wears an outfit like Dragon Ball's Son Goku, and carries a nyoi-bo. As the series transitions to Neko Majin Z, it becomes increasingly intertwined with the Dragon Ball world as regular characters join the cast, including an overweight Saiyan named Onio, and Freeza's son Kuriza. There are also guest appearances by Vegeta, Majin Boo and Son Goku.