Flame Ring

The Flame Ring is an upgrade obtained by Sonic and Shadow in the level Radical Highway or Crazy Gadget in the game Sonic Adventure 2.

This upgrade allows the user to break metal containers by using a summersault with a fiery aura. Shaodw can optionally find this upgrade in the level Radical Highway, while Sonic is required to get this upgrade in Crazy Gadget. The Air Shoes are required for Shadow to get the Flame Ring.

Trivia
This and the Bounce Bracelet are the required items to obtain the optional upgrade for Sonic, Magic Hand.