The Insect Heads are mini-bosses found in Freshly-Picked Tingle's Rosy Rupeeland. They are found in three locations around the Gooey Swamp but can only be reached via the Insect Cavern. Their abdomens are found within the cavern and emit a noxious gas which causes Tingle to lose Rupees. They also block his path to other sections of the dungeon.
To gain passage through the cavern, Tingle must destroy the Insect Heads by throwing a total of three Bomb Fruits at each.