How do you make all 3 hedgehogs golden in Sonic the Hedgehog PS3?

Answer 1

Answer: You beat all of the main characters episodes (Sonic, Silver and Shadow). After you complete all of the characters episodes, you get an extra episode called, "The last episode", you go to the episode and you have to a really long mission for the supporting characters ( Tails, Knuckles, Amy, Rouge and Omega) with also the two main characters. (Sliver and Shadow, Sonic is not there just because of the begging scene). Once you are done with the mission, you get to battle the boss Solaris, you have to Use Sliver, Shadow and Sonic in their super forms and battle Solaris twice.

This is my Answer.

And by the way, when you mean golden I think you mean in their Super Forms, Not golden OK