Nangoku Shounen Papuwa-kun
Genres: Adventure, Comedy
Type: TV, Episodes: 42
Aired: Oct 10, 1992 to Oct 2, 1993
Studio: Nippon Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Papuwa-kun is a young boy living a quiet life with his dog, Chappy, on a small island located somewhere in South Pacific, when Shintaro, who is being pursued by gangsters, invades their happy existence. 
Chappi takes Shintaro's precious Jewel, thereby making the two main characters lifelong rivals. Together they experience a series of bizarre adventures and situations. 

(Source: AnimeNfo)