Pretty good
Cool Pictures of Sonic and that - though for one of the questions it shows Chris Thorndyke with the other characters-and it's not about Sonic X. AND the...oh, can't say, or I'll ruin it for those who ain't unlocked the the bonus yet. But the bonus is COOOOL!
Style-It's Sonic.
Sound-Not a 10 'coz the music gets annoying. Emerald Coast, Sonic Adventure/SADX, I do believe.
Violence-The simple reason that there is none.
Interactivity-I answered something like 6 questions correctly, then got ne wrong! (s**t, keyboard's playn' up.