Yes, this has been out for awhile.
Just a couple of notes.
-These are arcade perfect, right down to certain glitches bugs (Thanos not having a proper ending). The games are basically just emulating the old arcade CPS2 (at the correct speed at that, unlike modern PC based emulators) and running the ROM images of the game.
-The reason these were released is because Capcom/Iron Galaxy could only realistically fit 2 games in a collection and a) Capcom cannot release the X-Men games thanks to Activition b) Marvel Super Heroes vs. Street Fighter is considered the worst game in the series so MSH and MvC1 were chosen.