The story of The King of Fighters: Theory Mercenary is a fan-driven journey through the world of M.U.G.E.N, a freeware 2D fighting engine that allows the community to create "mega" versions of classic franchises with expanded rosters and exclusive mechanics. The Evolution of Theory Mercenary
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PC: Ensure you have at least 4GB of RAM and a basic dedicated GPU. Most MUGEN-based games run easily on Windows 10/11. The story of The King of Fighters: Theory