Wonder-kun no Hatsu Yume Uchuu Ryokou
Japanese title: ワンダー君の初夢宇宙旅行
Alternative titles: First Marvelous Dream In Wonder-Boy's Space Trip, Space Journey - The First Dream of Wonder-kun
Type: TV Special
Source: Original
Episodes: 1
Status: Finished Airing
Aired: Jan 2, 1969
Duration: 11 min
Rating: G - All Ages
Producers: Mushi Production
Genres: Adventure

This is the story of a friendship between a boy named Taro and the mysterious Wonder-kun, using "the first dream of the New Year" as a motif. Guided by Wonder-kun, Taro departs on a space trip searching for adventure.

This work combines live-action and animation and was broadcast by NHK for kids staying at home watching TV over the New Year holidays. The program was 20 minutes long but the story portion was roughly 11 minutes, as such MAL will reflect the duration of the anime itself rather than the program it was shown in.

(Source: Official Site)