In shadow the Hedgehog, you need to beat every level
Devil Doom is located in Central City. Once Devil Doom is spotted floating above the read mist on ground, the first attack can use shadow arrows or by spitting a wall of fire at him.
Beat every stage and boss to reach the final story, and beat it. Devil Doom is the final boss.
To face Devil Doom on Shadow the Hedgehog you need to unlock the Last Way stage. To unlock The Last Way you need to have gone through all the possible paths in the story and seen all the other endings. Devil Doom is the boss you face after completing The Last Way.
beat every story boss and vs devil doom you are super shadow beat every story boss and vs devil doom you are super shadow
You have to finish the regular story mode.
beat the last story (after you fight devil doom)
Closest you can get to it is the version playing at Devil Doom.
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.
Shoot Doom's eye. He'll keep on switching sides of Doom, so you might have to circumnavigate his boady to reach the other eye. Make sure you stay back on some of his attacks, collect rings when your level goes below twenty and avoid all the rubble.
All you have to do is use chaos controll where needed when getting to black doom in the first part .. then you turn super and then as you defeat devil doom you have to hit his eye but after you hit it it switches to his other head :)
death
To get Super Shadow in Shadow the Hedgehog (on any of the consoles it was released on), you must beat every ending (there are 10 of them) in the game. You only have to do one mission in each level (except the Stage Sixes). After that, you will unlock the last story. Play through the level and you will reach Black Doom. You will then turn to Super Shadow and fight Devil Doom. This is the only level where Super Shadow is playable.