Running Boy: Star Soldier no Himitsu

This film was produced by Hudson Soft, an early video game company that produced Nintendo classics like Lode Runner and Bomberman. It follows a young boy who dreams of becoming a game designer, and gets his chance, only to have his idea stolen by a friend. This rivalry and the battle for justice (played out via video gaming) is the focus of the plot. The 80s was a 'golden era' for animated adaptations of children's toys, which dominated Saturday morning cartoons, and this is definitely in that camp (characters frequently play Hudson Soft games, particularly Bomberman). The art isn't up to typical anime standard, but the storyline is definitely more involved (although still short of genuine feature length) than a formulaic TV cartoon. While dated, the plot and relationships between the characters still resonate, but this is still probably more a curio for fans of classic video games.