>>715401698>>715402108I think nostalgia bait is only an issue if the thing can't really stand, even worse if it makes little sense without having prior knowledge. In the case of Mania, I think a lot of the nostalgia elements are genuinely appealing on their own, and I think a person who has never seen the Genesis-era games before would enjoy them if they assumed it was all brand new material. The only exception being the Puyo boss, which I think ends up just being awkward and out-of-place if you have know nostalgia for Mean Bean Machine
Otherwise, nostalgia would only be an issue if it's been down to death, like with Green Hills and Chemical Plant, which, unfortunately, Mania brings back, but the other returning at least haven't been abused yet.