yes, but you need 100% game completion (get all A's on all missions: normal and bonus)
it depends if metal sonic is in your game and if he is you are going to have to get farther in your game and he is not in all sonic games but he is in sonic adventure two battle sonic DX sonic gems collection sonic mega collection and others
Yes, you need to get A's on every mission and get all emblems. The team is: Speed: Neo Metal Sonic, Power: Chaos 0, Fly: Eggman in his Egg Flying thinermajig...
When you get all 130 emblems you can play as metal sonic on trial.
You have to get all the chaos emralds in the bonus stages
in sonic adventure dx you can only unlock metal sonic by collecting 130 sonic emblems.
to get metal sonic in sadx you need sadx trainer download sadx trainer then click on ,metal sonic then select sonic then click on metal sonic sonic will by metal sonic
get all emblems(levels and fields).
get 7 chaos emeralds
In order to get Metal Sonic in Sonic DX, you have to get 130 emblems. He is a reward for all of your hard work!
i don't think there is! to unlock metal sonic you have to find all the emblems.
He copied Sonic's abilities and copied Chocola's and Froggy's Chaos DNA.
Metal Sonic doesn't get a story in Sonic Adventure however you can play him in trial mode to unlock him get all the emblems you can go to every level Sonic goes to as Metal Sonic you can even fight the bosses and play the minigames.