The Sonic franchise has had it's fair share of ups and downs. To be honest, that's just about the nicest way I could think describe it. Say what you will about the newer entries (I haven't experienced them, so no comment) but everybody loved the early games, and I particularly remember reading the comic book series based on the games quite a bit when I was younger and enjoying them. They did an excellent job of taking that world and making it truly feel alive and truly fleshing out those characters.
It would appear that this outlook on the inked pages of this series has continued, as the main comic series based on the Sonic the Hedgehog games is about to hit it's 225th issue. Not a lot of comics get to reach that number. It may seem like series such as the X-Men or Spider-Man have been going on forever, but they keep getting restarted with new series.
The Sonic the Hedgehog comic book series is currently in the Guinness Book of World Records as the longest running video-game inspired comic, and Archie Comics is claiming it to be the longest running continuously published licensed comic series of all time. That's a lot of words to say "longest running comic based on something", but they may actually be right, and believe me; that's no small feat.
Now if only the other formats of the series could catch up...