Crossfire

You control a soldier running from left to right. Your job is to shoot everything that moves while avoiding enemy fire. You jump over pits and obstacles, and you fire your weapon constantly. The main goal is simply to survive as long as you can, pushing forward through each stage. The pacing is relentless; enemies appear quickly, and the screen scrolls automatically, forcing you to keep moving. It feels tense and immediate, a test of your reflexes more than anything else.