While there has been any official announcement yet, at last week's GDC SNK revealed that, to celebrate the 10th anniversary of the franchise, it is bringing Metal Slug to the PSP. As the Metal Slug Collection title indicates this will not be an all new product but rather a compilation of Metal Slug 1 through 5, including Metal Slug X. Metal Slug Collection will be a port of the classic arcade titles and will feature 2 player coop.