Boost Ring

The Boost Ring is a type of gimmick that appears in Sonic Rivals and Sonic Rivals 2. It's a variant of the Rainbow Ring.

Description
The Boost Ring is a gray rotative ring that allows the player to do a Speed or Air Boost in the air. To perform an Air Boost, the player have to press, and to perform a Speed Boost, the player have to press , however, if the player don't press the bottom quickly, he will be fell of the ring.

Sonic Rivals
The Boost Ring appears for the first time in Sonic Rivals, all the characters can use it.

Sonic Rivals 2
The Boost Ring reappears in Sonic Rivals 2, all the characters can use it.