This game is pretty short but a little challenging, especially without somebody else to help you like in Sonic the Hedgehog 2 and 3, but still pretty fun. The hardest challenge has to be getting all the Chaos Emeralds and becoming Super Sonic/Super Knuckles but that's just how Sonic games are. It's also really fun if you own Sonic the Hedgehog/Sonic the Hedgehog 2/Sonic the Hedgehog 3 for the Genesis. You can put the cartridges together to have some more fun. Of course, you probably already knew that.