with Sonic go to the Mystic Ruins and take the mine cart to the other side of the Mystic Ruins and head to Big's house go down one of the paths and you'l find it under a branch that is leaning over diagonally with Tails go to the Egg Carrier and fly up to the thing that is spinningДЎ2. with Knuckles go to the room on the Egg Carrier that has a pool in it and go to the end of the room and climb the wall (note-you can look around and find ring capsules as well)ДЎ1.

With Sonic go to the part on the Egg Carrier that looks like it was made of green glass where you fought Chaos 6 and get shot out of a cannon and Sonic will bust a metal box, (note-you might have to do this BEFORE you push the button to make the Egg Carrier switch back to it's normal mode)ДЎ0. With Sonic go to the room on the Egg Carrier that look's like it would be Eggman's bedroom and step on a button that makes a part of the wall come downД©. With Knuckles hop in the mine cart and get to the other side of the Mystic Ruins and glide to where you got the Maximum Heat Knucles Attack and glide downward near Big's house and fall into the tree that's hollowed outДЁ. with Sonic go to the train station in Staion Square and hop on the ledge on the wall and keep walking toward a small openingД§. with Tails go on top of his house in Mystic Ruins and look toward the mountain and you'll see it on a platformД¦. with Knuckles glide between the area between Angel Island and the entrance to Red Mountain and you'll find it floating thereДҐ. with Tails go near where you found the ice stone in Staion Square and fly up and you'll find it floating thereД¤. with Knuckles dig between the four trees in Staion Square on the right where you fought Chaos 0 with SonicДЈ. with Sonic go to the restaurant in Staion Square and go to the right sideДў.

Sonic adventure mystic ruins