I'm more of a Mario guy myself, but I do have and enjoy some Sonic games, but you should be aware that you don't have every Sonic game unless you have the one for the LeapFrog Didj, a short-lived educational console made from 2008-10. I just got the Sonic Didj game in the mail, and while it plays OK, it doesn't look really fantastic, it looks kind of like they put lossy jpeg images in a few places. And there's too many spelling games, but if you're a real Sonic fan, you'd probably enjoy it. So why did I get an educational handheld gaming system made by LeapFrog? I forgot, since I bought it in 2008, but looking through the net, I discovered it runs on Linux. Or that company that uses the penguin mascot.