I had a Sega Genesis and a Game Gear and loved them both. Not just for Sonic, but for the NFL Madden football games(talking 93-94 when it was new and fun.) There was a few other games I absolutely loved, both platformers, but I can't remember the names of either one of them. Help me out if you know them.
One of them involved a pair of twin boys who wielded both swords and magic to fight some evil clown thing, and you got to choose which one you played as, with each one better at a certain thing than the other.
The other was about this mummy thing who apparently had eyes in his midsection and that's all I can really remember about it.
I hated how the GG was a battery vacuum. That was taken care of when I got an adapter, though.
Gosh, I miss my Sega systems... *sighs wistfully* (Still have the Game Gear, but no longer the adapter.)