Wild Elixir

From the Super Mario Wiki, the Mario encyclopedia

The Wild Elixir is an item that appears in Donkey Kong Barrel Blast. It can be obtained by collecting a blue balloon. The Wild Elixir resembles a bottle of green substance with a "W" on the label. Once it is used, the racer will obtain a Wild Move. If it is used by a Kremling, it will reward two Wild Moves instead of one.