Metal Slug 2 越南大戰2/合金彈頭2 playthrough documentary ("Master of Metal Slug 2", Easy, no death)

Metal Slug 2 越南大戰2/合金彈頭2 (1998, Steam version 2016) playthrough documentary "Master of Metal Slug 2" achievement, difficulty=Easy, no death; (though this achievement on Steam is still bugged and likely is not legitly obtainable for years).