Plot: Captain Commando is a 1991 futuristic side-scrolling beat 'em up video game originally developed and published by Capcom as a coin-operated arcade video game, and later ported to several other platforms. It was the seventeenth title produced for the company's CP System hardware. Wikipedia
Plot: Strikers 1945 II is a vertically-scrolling shoot 'em up game developed and originally published by Psikyo in 1997 for the arcades as a follow-up to Strikers 1945. This game was also ported by Kuusou Kagaku to the PlayStation and Sega Saturn for Psikyo and re-released by Success in 2000. Wikipedia
Plot: Cadillacs and Dinosaurs, released in Japan as Cadillacs Kyouryuu Shinseiki, is a 1993 arcade game by Capcom. It is a side-scrolling beat 'em up based on the comic book series Xenozoic Tales. Wikipedia
Plot: Snow Bros. is a 1990 platform arcade video game originally developed by Toaplan first published in Japan, then in North America by Romstar and later in Europe. Wikipedia
Plot: Metal Slug is a Japanese run and gun video game series originally created by Nazca Corporation before merging with SNK in 1996 after the completion of the first game in the series. Wikipedia