An amazing game I used to play when I was little, and still love to play it now :)
This is one of the best Sonic games in the series to date, definitely my favorite thus far. You can play as many different characters from the Sonic series including Tails, Knuckles, Amy etc. and the game has a great story line and the levels are just amazing for a console as old as this.
Each character has their own story, except from tails, who you just race Sonic in each and every level he plays except the levels have minor changes.
I have to say if you are a classic game/Dreamcast game collector I suggest that you buy this and have a go on it as it will instantly enter your heart :)