You cannot unlock Shadow in Sonic Adventure DX. Videos from YouTube that show him in SADX are hacks.
unlock him by shagging the boss
complete rouge's adventure
To unlock shadow, I think you complete adventure&classic with sonic. If not, try to complete classic and adventure with tails, then knuckles, then sonic.
Yes you can by completing all of the adventure modes of Sonic, Tails, Knuckles, Cream and Amy.
He is in Cubyrinth, beat him at Nordic Combined, to unlock him as a character in Adventure Tours.
The code to unlock shadow on ultimate flash Sonic is 595313131313131.
You can only unlock Sonic on SSBB no you can get super sonic shadow and you can get their rel form were their not super
maybe becuz if super sonic is unlock able then shadow and super shadow should be unlock able
Sonic:6 Shadow:4
Sonic Super Hedgetastic Adventure and the death of Shadow
You cannot unlock super shadow
I will help you! First you have to finish Knuckles s adventure to get Rouge and when you get Rouge you have to finish Rouge s adventure!