Sonic Adventure 2

Tails/Robotnik levels were fun, although admittedly had some control issues. Rogue/Knuckles were probably the least fun of all of the missions, but the only really un-fun part about them was trying to get all the emblems. Chao Garden is optional. Who the hell plays a Sonic game for the plot? It had more of a plot than Sonic CD, but that's not the point: the point is in the speed platforming. And the platforming was great. I still own my Dreamcast with the original copy of SA2. Maybe the GC copy was ported bad, but SA2 ranks among my favorite all-time console games. And yea, the tunes were fantastic

Chao were and still are cute, heck it's probably the only reason I put almost 200 hours into that game. Every other Sonic game? What, I think I'm lucky to manage 40 hours. Don't misunderstand, Sonic games are supposed to be fast, but the chao gave me a reason to keep playing the game long after I beat it, and in pursuing retrying levels again and again, eventually made me get better at the game itself and obtaining all A rank (usually I'm satisfied with just beating a game). Not to mention connecting it with my Sonic Advance for training on the go.

There are people who wish chao would make a proper return in future games, as of now they're just annoying figureheads or help icons. They don't have any meaning to me in the Sonic Universe.

I'm not going to say go run and get Sonic Adventure 2 for the chao, even I'm not rebuying it at this time (hard to justify that since I have it working fine on gamecube), but those little guys weren't useless to me man :'(