To use Giant Froggy, the player must have obtained an All-Star Item. When using it, Big summons Froggy who grows to the size of a Giant Frog. Big then grabs hold of Froggy’s tail (the same one he had while possessed by Chaos) while the frog himself hops down the track.
While active, Giant Froggy grants Big a temporary increase in speed while the song "Fish Hits!" from Sonic Adventure plays in the background. In addition, Froggy can stomp down and mow through any racers in his path.