Wonder Island is a series of two one shot manga written by Akira Toriyama

Akira Toriyama

is a Japanese manga artist and game artist known mostly for his creation of Dragon Ball in 1984. Toriyama admires Osamu Tezuka's Astro Boy and was impressed by Walt Disney's One Hundred and One Dalmatians, which he remembers for the great art...

. The first chapter appeared in Weekly Shonen Jump

Weekly Shonen Jump

is a weekly shōnen manga anthology published in Japan by Shueisha under the Jump line of magazines. The first issue was released with a cover date of July 2, 1968, and it is still circulating. One of the longest-running manga magazines in Japan, it has a circulation of 2.8 million copies...

 in 1978 and was featured in Akira Toriyama's Manga Theater Vol. 1 in 1983. The setting of this manga appears later on in Toriyama's later series Dr. Slump

Dr. Slump

is a Japanese manga series written and illustrated by Akira Toriyama. It was serialized in Shueisha's anthology comic Weekly Shōnen Jump from 1980 to 1984 which were collected into 18 tankōbon volumes...

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Plot

The first chapter focuses on a pilot named Furusuni who is lost on Wonder Island. The second chapter focuses on policemen named Gala, Pagos & Gyaosu who later appear as recurring characters in Dr. Slump

Dr. Slump

is a Japanese manga series written and illustrated by Akira Toriyama. It was serialized in Shueisha's anthology comic Weekly Shōnen Jump from 1980 to 1984 which were collected into 18 tankōbon volumes...

.