English pewter 16th century a third grade was added. The first type, known as "fine metal", was used for tableware. It consisted of tin with as much copper as it could absorb, which is about 1%. The second type, known as "trifling metal" or "trifle", was used for holloware. It is made up of fine metal with approximately 4% lead. The last type of pewter, known as "lay" or "ley" metal, was used for items that were not in contact with food or drink. It consisted of tin with 15% lead. These three alloys were used, with little variation, until the 20th
Metal Slug Android, Windows Phone, Nintendo Switch and also for PC via Steam. Subsequent main games and spin-offs were created for platforms including Nintendo DS, Neo Geo Pocket Color and Game Boy Advance. A collection of the first seven games in the main series, including the "Metal Slug X" remake, "Metal Slug Anthology", is available for the Wii, PlayStation Portable, and PlayStation 2, with a similar collection, "Metal Slug Collection PC", being available for PC, while a revamped version of the seventh game, Metal Slug XX is separately sold from the collection. A spin-off tower defense game, "Metal Slug Defense", was created