I can't believe people like the dreamcast version better.
What sucks about the gameplay are the action stages. For example, If you've just completed the first stage with C Emblem, you can't go back until you've completed the second stage with the next C Emblem.
The graphics aren't as good as the dreamcast version's graphics. They are too colorful and shiny, but not as colorful and shiny as Sonic Heroes.
The sound is excellent. The theme songs rock and the music is great. You can't beat the classics.
Eh, I didn't play it as much as Sonic Heroes, but I will play it again soon.
Overall: 9.4