Thunder Guard

Thunder Guard is a move used by Sonic the Hedgehog that has only appeared in Sonic the Hedgehog (2006) as one of Sonic's custom moves. It is a move that gives Sonic a small yellow shield while attracting nearby rings. It can only be used after Sonic obtains the Yellow Gem.

Description
In order to use Thunder Guard, Sonic has to possess the Yellow Gem upgrade.

When using this move, a shiny yellow shield forms around Sonic. Sonic automatically attracted nearby rings with the shield. Sonic can withstand one hit before the shield disappears.

Trivia

 * When the Thunder Guard has been activated, it will remain active, even when the player changes the Yellow Gem upgrade to another.