I'm so happy. I've just completed the final levels of Sonic 2 on my computer. And let me tell you that the final zone (Death Egg) isn't a piece of cake. There are two very tough bosses and there isn't any ring to collect and to be protected by. You need patience, lightning-fast reflexes and good gaming skills to complete the final level.
I know there's one question you're asking to yourself: how can I play Sonic 2 on my computer? It has only been released on early Sega game consoles in the early 90s.
Well, Internet has a lot of treasures. There's a website called CoolROM.com (www.coolrom.com). It contains emulators which allow gamers who only own computers to get games released on other consoles. It's there that I got many classic games and you could as well if you visit that fantastic website.
Now that I've just completed Sonic 2, I will now try to play something else...