Plot: Superior Soldiers, known in Japan as Perfect Soldiers, is a 1993 fighting arcade game developed and published by Irem. It was created during the fighting game trend of the 1990s that began with Capcom's Street Fighter II. Wikipedia
Plot: Spelunker II: Yūsha e no Chōsen is a Japan-exclusive action video game released for the Family Computer in 1987. An unofficial translation to English was made as a ROM hack. Despite being titled as a sequel to Spelunker, Spelunker II: Yūsha e no Chōsen features vastly different gameplay. Wikipedia...
Plot: Armed Police Unit Gallop is a side-scrolling shoot 'em up arcade game produced by Irem in 1991. It is part of the popular R-Type video game series. Wikipedia
Plot: Blade Master is a scrolling hack and slash arcade game released by Irem in 1991. Two selectable heroes, Roy and Arnold, try to save their land from hordes of monsters. There are items to break and power-ups to collect, typical of this genre in the 1990s. Wikipedia