The Boost is a move that appears in the Sonic the Hedgehog comic series published by IDW Publishing. It is a technique that turns the user into a destructive high-speed projectile. It is also one of Sonic the Hedgehog's signature moves.
When performing the Boost, the user surrounds themselves in a projectile-shaped energy shield and propels themselves forward at speeds beyond the sound barrier thus turning the user into a highly destructive projectile moving at supersonic speeds.
The Fire Boost is a signature technique of Blaze the Cat, and her equivalent of the Boost. When performing this move, Blaze envelopes herself in a fireball and begins charging forward like a burning meteor.