Quite easily one of the best sonic games ever created, fan-game or official! The level design, the character abilities, the wonderful music and aesthetics, it's all so wonderfully hand-crafted and makes me so grateful for this game's existence!

The only reason I'm giving it a 4.5 instead of full marks is the disappointing lack of outstanding custom levels compared to 2.1, but the vanilla campaign is so amazing that I honestly can't complain too much.