Knuckles in Sonic Battle?
No.
We're running out of Knuckles speaking roles...
Knuckles in Sonic Adventure 2? When you face him as Rouge.
But the Knuckles is talking to Sonic, according to the latest hint.
Knuckles in Sonic Advance 3
Nope to both!
KNUCKLES IN SONIC ADVANCE 2! Sorry, had to shout it.
Oh, shoot!
(smacks head with hand)
That was gonna be my next guess...
Nup.
Knuckles in Sonic Pinball Party?
Knuckles in Shadow the Hedgehog.
Knuckles in Sonic Rush
GyserHog got it. It's from the banter before the first round.
"I have some unfinished business to take care of."
There's your quote.
Shadow in Shadow?
Nope.
Knuckles in Sonic Adventure 1
Yep. SonicV2 gets it. It was Knuckles in Sonic Adventure. Well that was quick. Your go SV2.
"Shoot. Not my day."
Sonic in Sonic Heroes when you get an E ranking. Piece of cake!
CRAP
Your turn
"NO WAY!"
Looking for a specific one here!
Knuckles in Sonic Adventure 1 if he was standing on ground he couldn't dig under.
Nope!
Sonic in Sonic Adventure 2 when Amy asks him to marry her
No, but you got the right game and right character.
Sonic in Sonic Adventure 2 when he was running next to the president's limo. BOOYAH!
You got it! I could've been evil and not included the "right game and character" bit, but, well, I'm too nice for my own good sometimes.
"Now you know why I'm the best!"
Eggman in Sonic Adventure 2, when you get an A ranking.
AARGH!
That's right.
"Let's do this!"
Sonic when you start a multiplayer match in SA2.
DING DING DING! We have a winner!
"Hmmm... I think they were headed toward the town."
Good luck.
Is it a NPC?
No. It's an offical, named Sonic character.
EDIT: ZOMGhax! I just realised I'm currently in control of 3 of the "Name That"s!
Is it one of the times you talk to one of the other characters in Sonic Adventure?
That's a very vague question. But the answer is no.
EDIT: Meh. Since no one seems to want this, I'm gonna throw it open. It was Vanilla (Creams mother) from Sonic Rush, when Sonic+Tails ask her where Cream and Blaze went.
Ooh, ooh! I wanna try!
Um..
"yeah!"
Since it's xtremely broad, lemme just give you a hint:
It's not said in a cutscene
Sonic CD, when he gets a life?
Sonic Advance 2 or 3 when Sonic performs an R-trick (the one with the tornado).
Yup, Manic got it =P
(Dude, you are GOOD.)
It's been WAY too long. I got dibs!
"Ascend!"
Omega in Heroes.
Yes. And please respond man.
"Okay!"
Sonic when he performs a snowboard stunt in Sonic Adventure
Nup.