AniDB

Neko Majin (ネコマジン) is a short series of one-shot manga chapters by Akira Toriyama, spanning eight total installments released from 1999-2005. It is most notable for its later portion, Neko Majin Z, which is a self-parody of Dragon Ball, the author's most famous work. Originally a one-shot bearing little relation to Akira Toriyama's other series, the first chapter of Neko Majin appeared in Weekly Shonen Jump in April 1999 (WJ #22-23). Though there were some similarities, it didn't become a self-parody of the Dragon Ball manga, until Neko Majin Z, which had cameos of characters from the author's magnum opus. As of 2005, the series was completed with eight total chapters (five of which are Dragon Ball parodies). These chapters were compiled into a "kanzenban"-style package for release in Japan on 4 April 2005.

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So, how is this about anime?

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No, Hoerie was asking what your manga trivia has to do with anime. I see no point to your post.