Originally Posted by
TSDude
It's actually "The Hare and the Tortoise".
Anyway there would be no need for them as their gameplay would just be a copy of Sonic's. Sonic can fly with the 'Eagle' power-up, he can drill with the 'Drill' power-up. Tails and Knuckles would not make a great impact on the game.
EDIT: Also "it would totally make since", could you please fix your grammar. You've been doing this in almost every post and sometimes it makes your posts confusing and hard to read.
Correction: "it would totally make sense".