Plot: Moon Patrol is an arcade game by Irem released in 1982. It was licensed to Williams for distribution in North America. Moon Patrol is often credited with the introduction of parallax scrolling in side-scrolling video games. Wikipedia
Plot: King Neptune's Adventure is an unlicensed adventure game created for the Nintendo Entertainment System by Color Dreams. Players play as King Neptune, as they venture though ships, oceans and Atlantis. Wikipedia
Plot: Castle of Deceit is a side-scrolling game for the NES released on 1990 by Bunch Games, where the player takes control of a wizard trapped in the titular castle with only one spell to defend himself. Wikipedia
Plot: Silent Assault is an unlicensed game created for the NES by Joy Van and published by Color Dreams. Players control the only human who was unaffected by an alien power, as the Earth's military forces are under control from the deadly alien force. Wikipedia
Plot: Robodemons is an action video game with shooting elements that was released for the Nintendo Entertainment System by Color Dreams on December 20, 1989. Like all Color Dreams games, Robodemons was not officially licensed by Nintendo. Wikipedia