Many 2021 Recalbox users opted for Metal Slug XX over Metal Slug 7 for this very reason.
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: This is the seventh main installment in the Metal Slug series, a run-and-gun action game series. Metal Slug 7 was initially released in 2008 and, like other games in the series, has been a favorite among fans of the genre.
Touchscreen controls can be mapped to mouse or right analog stick in Recalbox settings.