Plot: Metal Fighter is a side-scrolling shooter game developed in Asia by Joy Van and published by Color Dreams and Sachen. It was later published as Metal Fighter μ in Japan by Kinema Music in 1991. Wikipedia
Plot: Colorful Dragon, is a maze game developed and published by Sachen for the Nintendo Entertainment System on 1989 in Asia. Bunch Games later licensed the game for distribution in North America for a 1990 release, and published it as Tagin' Dragon. Wikipedia