Frackle is a little "organism" resting on Fracktail's back in Super Paper Mario.
History[]
In the second boss battle in the game, Mario had to use the pixl Thoreau's power to grab the Frackle and smush the antenna 3 times. Later in the game, you must take on Wracktail in the Pit of 100 Trials which involves the twin brother Wrackle.