PSP “Metal Slug Collection”
http://psp.ign.com/articles/697/697931p1.html
including Metal Slug, Metal Slug 2, Metal Slug X, Metal Slug 3, Metal Slug 4 and Metal Slug 5.
http://psp.ign.com/articles/697/697931p1.html
including Metal Slug, Metal Slug 2, Metal Slug X, Metal Slug 3, Metal Slug 4 and Metal Slug 5.