Seven incredible METAL SLUG games on one UMD - METAL SLUG 1, METAL SLUG 2, METAL SLUG X, METAL SLUG 3, METAL SLUG 4, METAL SLUG 5, METAL SLUG 6

PSP version features Wi-Fi (ad hoc) support for intense 2-player action

Arcade perfect port of each title

Pick-up-and-play, non-stop action