Contra

Contra (コントラ Kontora?), distributed as Gryzor in Europe and Oceania, is a 1987 science fiction/guerrilla-themed run-and-gun action video game developed and published by Konami originally released as a coin-operated arcade game on February 20, 1987.
Contra is a run-and-gun action platformer, notorious for its high difficulty. The player character comes armed with a gun that can shoot infinitely. Different weapons with new abilities and that shoot different types of projectiles can be acquired as the player progresses through the levels. These can be found either inside of Pill Box Sensors or in Flying Capsules. When destroyed, the power-up will spring out onto the battlefield and can then be collected to change the player's weapon. However, the weapon will be lost if the player comes in contact with an enemy or a deadly obstacle, losing a life instantly. The character can shoot in eight directions and can also crouch.