Metal Slug Anthology is the definitive collection of the intense shooter series. It includes all six of the classic games, all on one disc - with ammunition and firepower than ever before..The PSP version has a wireless ad-hoc mode so that two people can play together and work as a team..You've got an incredible arsenal waiting for you, from destructive pistols & combat vehicles to a stockpile of grenades..Players' enemy-killing capabilities are upped to off more evil-doers in this 10th anniversary edition...