Just as good as Sonic 2
Sonic 3 does everything right. It's just as fun as Sonic 2. The music is just as good if not better then Sonic 2's as well. Plus Michael Jackson was involved with some of the music. How cool is that! The song at the credits is probably the best Sonic song. Music aside this game is great. Instead of one shield like Sonic 2 this game has 3 different ones. A fire shield which gives you a charge attack, a water shield which can bounce, and an electricity shield which can pick up nearby rings and give you another attack. The levels in this game are awesome. Ice Cap Zone is hands down the best Sonic level ever. The music makes the level great.
So Sonic 3 is a fantastic masterpiece that I can play over and over and not get bored. You need to buy this game anyway you can because it kicks ass. This takes what's great about Sonic 2 and makes great new changes.