The only things about Sonic 2 I'd say is a negative is that 2nd-player-Tails isn't very useful (this was improved in Sonic 3), and that the game is a wee bit too long with no way to save. I also grow weary by the end.
Fantastic games though.
Rev-One tip for beating the final boss that my cousin helped me discover is to go all the way to the right side of the screen before the boss rises, then you'll be behind it and can get several free hits in. It was years before I managed to get all the chaos emeralds, the first time I did it, I got the last emerald at the very last starpost in Wing Fortress Zone, so I didn't get to use Super Sonic for very long.[/QUOTE]
Yeah, I finally beat Sonic 2 last weekend. I usually get burned out by the Oil Zone but I just stocked up on continues and beat the game. I tried your idea and it worked great. He was much easier this time compared to the last time I gave it a try.