Get this & Sonic Advance 3, these are the best Sonic handhelds from the Rush series back!
Time Value: I don't expect it will take you a short time to complete the game unless you used cheat codes, there are a lot of skill cards + there's the fact that you have to level up Emerl (main character). The fighting may eventually get repetitive but that is should take a while {5/5}
Music: The music is alright, not near the best when it comes to Sonic series soundtracks. {4/5}
Graphics: The Chaos Emeralds are all the same color + I don't know why they chose to make the character models look like they did, but it's not bad. {4/5}
Story: I don't want to comment much on the story, why don't you try the game out and share your opinion. {4/5}
Balance: Every character has 3 types of attacks, with their own specialty for that category. It is balanced, and of course like Brawl some characters attack and move faster than others. {5/5}
Characters: The first Sonic game I owned with a nice sized independent character roster, with the others being the Sonic Riders games. {5/5}
Overall: {4/5, 80%} It is a great fighting game that you should buy, I wouldn't rent it since it is a GBA game and I would think that would be difficult to find but still cheap. Just look at a game resale store. Hope my review influenced your decision.