Metal Gear Acid is a PlayStation Portable strategy game that reworks Metal Gear stealth into a tactical, turn-based format. The mission centers on Solid Snake infiltrating after a hijacked plane crisis, with card-driven planning replacing the series’ usual real-time action.

• Cleaned, tested, and guaranteed to play. Authentic cartridge.
• Stealth action is built around tactical movement, positioning, and mission planning instead of traditional run-and-gun combat.
• Over 200 strategic moves are available through battle cards used to shape infiltration tactics.
• Card decks provide themed abilities and actions, giving loadouts different tactical roles during missions.
• Two playable characters are featured, along with appearances from familiar Metal Gear characters.
• Wireless multiplayer unlocks head-to-head stealth gameplay through PSP Wi-Fi play.

The game was directed by Shinta Nojiri and represents a handheld side entry built specifically around card-based tactical espionage. Its strategy-focused structure separates it from the mainline Metal Gear action formula.