The modern PC collection (available via Steam, GOG, or the Microsoft Store under the Metal Slug series bundle) typically gives you access to the golden era:

Unlike console versions, the PC ecosystem is fragmented. There isn't a single "Collection" on Steam with all seven mainline titles under one roof (though Metal Slug XX comes close). Instead, players must assemble their own collection or find the iconic compilation disc from the mid-2000s.

In the mid-1990s, SNK Corporation, a renowned Japanese video game developer, was on a mission to create a side-scrolling action game that would surpass all others. The result was Metal Slug, a game that would go on to become a legendary franchise.

The Metal Slug Collection offers a delightful blend of action, comedy, and challenging gameplay. Players control Marco, Tarma, Fio, or a variety of other characters as they battle against the evil Rebel Army. The games are known for their: