Kosuke-sama Rikimaru-sama: Konpeitou no Ryuu
Kosuke and Rikimaru: Dragon of Konpei Island
小助さま力丸さま-コンペイ島の竜-
Kosukesama Rikimarusama: Konpeito no Ryu was a 45 minute long anime TV special produced by J.C. Staff and broadcast on Japanese television in 1988. Similar to Dragon Ball, it was a martial arts adventure story featuring villains that could have stepped out of the Red Ribbon Army, typical Toriyama mecha, and a clone of Son Gohan's Haiya Dragon.
(Source: animenation.net)