how to play original arcade mission games?

[Alex DeLarge]

i did all the training and stuff and now level 8,
i there somebody knows how to play the classic mission? like metal slug 1 to 6?

[Lucius Caesar]

you can't. I mean there are missions in the main story that are inspired by the original games, but if you want to play the original classic missions, you just have to get those games.

[ZAC]

They wouldn't still be selling retro Metal Slug games on Steam if they're to include them here. Awakening is F2P, you know.

[The New Paradigm]

You kinda can, on the recording mode, or something like that, you play some old missions.
Their icon is a green sphere with the silhouette of a photo inside, continue upgrading your character and eventually they will appear on the mission map.