^ Agreed, Shuffle has a great intro. Cool music and I liked the cel shaded renders. Also, looking back at it, I really like how it wasn't bogged down by characters introduced in Sonic Adventure 2 (Shadow, Rouge) and the Advance series (Cream).
The only stars are Sonic, Tails, Knuckles and Amy because... that's really all they had! Depicted by their Dreamcast SA models to boot! Smartly, the secondary characters were unlockables, not shoehorned into the main story mode (Big the Cat, E-102, Super Sonic and a Chao).
Ah the good ol' days...
Two more kickass intros:
[youtube:3gzz64nb]uDXR0dPr-48[/youtube:3gzz64nb]