Impressive

Very nice, absolutely no slowdown in the time Ive played (which was finishing all characters 100%, all emeralds). Just as good as the original gameplay-wise, but the inclusion of Tails and Knuckles, along with time attack and other things puts it way above expectations.

There is one issue during the end cutscenes as Knuckles where he gets caught in an endless death loop in Labyrinth Zone. It isnt game-breaking as it only blocks maybe the last 15 seconds, but a fix would be nice.

Justin Mott about Sonic The Hedgehog Classic, v2.0