Metal Slug Anthology compiles Metal Slug, Metal Slug 2, Metal Slug X, Metal Slug 3, Metal Slug 4, Metal Slug 5, and the all new Metal Slug 6. That's exciting stuff, so we looked at its website. The website has information about the anthology for PSP and also for the Wii version.

Our favorite feature: the "Track Select" option near the bottom of the screen. Ah. When we hear that music we remember: this is one of the best game franchises of all time. There's also a screenshot gallery, and there are areas where you can explore the game's history, the vehicles, and the soldiers.