How do you get knuckles on sonic 3
How do you get knuckles on sonic 3
You have to have the genesis game called "Sonic and Knuckles". This cartridge is special because it allows another cartridge to be placed on top of it. You place "Sonic 3" on top of "Sonic and Knuckles" and you get to play as Knuckles. Same goes with "Sonic 2".