Grysor / Contra

Gryzor is a shooter from Konami

The Story: In 2631, a meteorite strikes the Galuga archipelago near New Zealand, carrying with it a dormant alien lifeform. Two years later in 2633, a terrorist organization of alien origin called Red Falcon takes over the island as part of their plot to invade the Earth. Bill Rizer and Lance Bean, of the Contra unit, are sent to the Oceania island to stop the evil threat.

Gryzor ( also known as Contra ) is a one or two player platform shoot-em-up featuring 5 stages. Each player's character is equipped with a semi-automatic machine gun with an unlimited amount of ammunition and can jump, move and fire in all eight cardinal directions. Players can also move and jump simultaneously while firing. Co-ordination of the character's movement is essential as a single hit from any enemy, bullet, or other hazard will instantly kill the player's character and also eliminate the current weapon from the player's inventory.
3 of the levels are standard side-scrolling platform levels, while the remaining two are enemy 'bases'; 3rd person into-the-screen stages in which players must run down series of heavily defended corridors to reach and destroy an end-of-level boss, before moving onto the next stage.