Play Mercenary Force (usa, Europe) Online

Mercenary Force came out for the Game Boy in 1990, developed and published by NCS Corporation. It was part of that early wave of portable games, a side-scrolling shooter that tried something a little different with its small screen.

You control a squad of four mercenaries simultaneously, moving them as a single block left and right. Each character has a unique weapon, like a sword, a boomerang, or a gun, and they automatically fire at enemies that approach from either side of the formation. Your main goal is to clear each stage by defeating the boss waiting at the end. A key mechanic is swapping your lead character to change the squad's primary attack, which is crucial for dealing with specific enemy types or bosses. You also collect power-ups that can restore health or upgrade your weapons for a limited time. The game moves at a steady pace, but the screen can get crowded with enemy fire, making careful positioning essential. It feels like managing a small, mobile fortress, constantly adjusting your approach to survive the onslaught.