Metal Slug (メタルスラッグ, Metaru Suraggu), also called Metal Slug 3D (メタルスラッグ3D) to distinguish it from the original Metal Slug, is a third-person shooter run and gun video game for the PlayStation 2. It was developed and published by SNK Playmore. It was released only in Japan on June 29, 2006 due to mostly negative reviews from critics. It is the first game of the series to be presented in 3D. None of the original Metal Slug team were involved with the title.