You can legally dump your own ROMs if you own the original cartridges or compilations. However, for most players, the easiest legal loophole is buying the release—it is excellent.
Widely considered the masterpiece of the series, featuring branching paths and massive scale. Metal Slug Collection 1-2-3-4-5-6-7-X PC Comple...
This is the rarest entry on PC. It features Ralf and Clark from Ikari Warriors . The unique "Weapon Stock" system lets you carry two weapons at once. If you find a copy of the Metal Slug Anthology or the SNK 40th collection, you unlock the ability to play as Ralf, who can take two hits instead of one but loses his gun when punched. You can legally dump your own ROMs if
(A remixed version of Metal Slug 2 with improved performance and extra content) Metal Slug 3 This is the rarest entry on PC
: Known for the "Metallicish" soundtrack and the "Rush" scoring system. Metal Slug 5