Luigi
Sonic: So...why is Mario wearing green?
Tails: YOU DON'T KNOW PIKACHU, AND YOU DON'T KNOW LUIGI?!
Sonic: I'M KIDDING! I KNOW WHO LUIGI IS! WHO DOESN'T?!
Tails: Oh, phew.
Sonic: So, anything to add Knuckles?
Knuckles: ...
Sonic: ...Knuckles?
Tails: You alright?
Knuckles: La li lu le lo. La li lu le lo. La li lu le lo.
Tails: ...
Sonic: ...So...Tails, have any strategies to take him down?
Tails: While Luigi looks like Mario, they have completely different movesets!
Sonic: Like what?
Tails: Instead of a Cape, he launches himself at you like a missile! Instead of a Water Pump, he does a little spin attack!
Sonic: They both have fireballs and a coin jump, right?
Tails: The fireballs work completely different, and the coin jump has a little instakill part to it!
Sonic: Cool! Anything else?
Tails: Well, just a little tip...don't fall for his down taunt. It's embarrassing.