Ikari Warriors II: Victory Road1986

Ikari Warriors is a vertically scrolling action game. One or two players fight their way through a variety of terrain, such as jungles, rivers, and ruins. Along the way different weapons can be found, including machine guns, grenades, and rocket launchers.

Contra (also known as Gryzor in Oceania and Europe), is a 1987 run and gun action game developed and published by Konami originally released as a coin-operated arcade game on February 20, 1987. The game had multiple ports, including for various computer formats. Several Contra sequels were produced following the original game.

Time Crisis II is a light gun arcade game and the second installment in the Time Crisis series. It introduces co-operative multiplayer to the franchise. The game was first released in arcades in April 1998, with an enhanced port released on the PlayStation 2 in October 2001, bundled with the GunCon 2 controller.

It's a nightmare, but it's true! Research shows that we are the actual aliens on Earth, and the ruthless Xevions are the original inhabitants. Now the Xevions want Earth back -- minus humans! Their invasion forces are fierce -- the land is crawling with deadly Domogram Rovers; the sky is black with Toroid Patrol Fleets and Zoshi Death Squads. Our puny weapons offer no defense. Earth's only hope is our powerful new Solvalou Fighter Plane. Its pilot will have a single mission: Penetrate the enemy ranks and destroy the Xevious Mother Ship. The mission is dangerous. We can't guarantee success. But at this point, it's do or die! One small problem. We still need a pilot. Any volunteers?

“METAL SLUG 3”, the masterpiece in SNK’s emblematic 2D run & gun action shooting game series, still continues to fascinate millions of fans worldwide to this day for its intricate dot-pixel graphics, and simple and intuitive game controls!

Overhead run'n gun-style shoot-'em-up. You play as jeep driver and gunner rescuing POWs. More commonly known as Jackal outside the US.

Contra Force is an action shooting game released by Konami for the Nintendo Entertainment System in 1992 in North America. It is a spinoff of the Contra series, being the third game in the series released for the NES following the original Contra and Super Contra, although the game's plot and setting are unrelated to previous entries, as the villains in the game are human terrorists instead of an alien menace

Front Line is a vertically scrolling action game. Your mission is to infiltrate enemy territory and destroy their fortress. To reach the fortress, you will have to make your way through varied and dangerous terrain. Jungles, deserts, brush, and rocks all slow your progress, plus each area has numerous enemy fighters and tanks trying to stop you. To help get past these obstacles, you are armed with a machine gun and grenades; at some points in the game you may even come across an abandoned tank which you can control to increase your odds of survival. When you reach the end of the level and successfully destroy the fortress, the game will repeat at a higher level of difficulty. Gameplay is for one or two players, and four different skill levels are available.