Play Metal Slug : Vietnam Battle 3 Online

Metal Slug: Vietnam Battle 3 was a Game Boy Color release, though it never saw an official commercial launch. It's one of those obscure, fan-made titles that circulated among dedicated players. The game carries the spirit of the Metal Slug series, adapted for the handheld's limited hardware, and it fits right into that era when portable games often offered condensed, action-heavy experiences.

You control a soldier navigating side-scrolling jungle and military base stages, shooting enemies with a standard firearm that can be powered up. The main goal is to survive each stage, defeat the boss, and move forward. Signature mechanics include rescuing POWs for extra points and weapons, piloting occasional vehicles like the Slug Mariner, and managing limited lives and continues. The pacing is fast, with constant enemy fire and screen-filling explosions, and the difficulty remains high, demanding quick reflexes and memorization. It feels like a frantic, condensed version of the arcade classics, stripped down but still intense.