Contra is a run-and-gun style platformer developed by Konami and published by Erbe Software initially in 1987. It was released in arcades and on ZX Spectrum and Amstrad PC to start with.
Metal Gear 2: Solid Snake is a top-down stealth action game developed and published by Konami and released in 1990. It was written and designed by Hideo Kojima, who also designed the MSX2 version of the original Metal Gear.
Castlevania II: Simon's Quest is a platformer action-adventure created by Konami in 1987 for the Famicom and released in North America for the NES in 1988. This is the second game...
Gradius is a horizontally scrolling shoot 'em up developed and published by Konami, initially in 1985 as an arcade. The game was ported to MSX and NES in 1986 and released outside of Japan with the name "Nemesis.