yes theres a last story on shadow the hedgehog. first you have to get to black doom before time runs out using chaos controll alot as you go along.. once you have got to him you then use the chaos emeralds to turn super and then you end up defeating black doom but hes turned into devil doom.. (tip: hit his eye) and i wont tell you what happens after that :)
You have to finish all of the stages in story mode.
beat the last story (after you fight devil doom)
You have to get to the last story to become Super Shadow.
Once you finish Sonic, Silver and Shadow's story, the last story becomes playable.
Once you finish Sonic, Shadow and Silver Story, Last Story appears on the story screen.
you beat the last boss
yes there is chaos
The only time you can become Super Shadow in Shadow the Hedgehog is at the true final boss, at the end of "The Last Story", when you fight Devil Doom, the super form of Black Doom.
You get last way after you finish the origanl story mode. So work on the story and you will get Last way. Good Luck!
Shadow has no real last name. His full name is simply "Shadow the Hedgehog."
There are 4 episodes Sonic, Shadow, Silver and Last, you unlock Shadow by encountering Shadow in story mode, and Silver's story is unlocked by encountering Silver in Sonic's story, last story is unlocked by beating all 3 hedgehog's stories, none of these are 'hidden' per say, but there the only episodes or stories in the game.
Biologically, Black Doom can be seen as his father as Shadow was created using his DNA. But Professor Gerald was more of a father figure to Shadow even calling him, his son in the Shadow the hedgehog game during last story.