Sonic Frontiers
... that the developers of Sonic felt the series' linear design contained "little room for evolution" so they decided to make Sonic Frontiers an open world game?
... that the developers of <a href="./Sonic_the_Hedgehog" id="mwArc" rel="mw:WikiLink" title="Sonic the Hedgehog">Sonic</a> felt the series' linear design contained "little room for evolution" so they decided to make <i id="mwArg"><b id="mwArk"><a href="./Sonic_Frontiers" id="mwAro" rel="mw:WikiLink" title="Sonic Frontiers">Sonic Frontiers</a></b></i> an open world game?