Fred de Fillet (also known as Furious Fred, Furious Fred de Fillet, or simply Fred) is a Jean de Fillet that is the boss of World 4 in Yoshi's New Island. He attacks by sending lava waves or by sending flightless skeleton goonies at Yoshi (species). Yoshi has to remove his armor by ground-pounding a button on its back, then wait for Fred de Fillet to come back to the surface of the lava to hit him with eggs.