Website and research by 101Leafy.

Sea of Trees Boss

For The Legend of Zelda: A Link to the Past & Four Swords on the Game Boy Advance (GBA).

Stage: Sea of Trees

From the official guide

The cabbagey creature at the end of the Sea of Trees is as difficult as the most evil Legend of Zelda bosses—if only because you must use teamwork to beat it. Each player must first strike at the fanged, whirling head that matches the color of his tunic. The creature will expose new weak sides. When the foliage freak displays its vine-handles, players must grab them and pull them—then the multicolored blossom will appear. Players with like-colored tunics must strike it at the same time.

The Legend of Zelda: A Link to the Past & Four Swords, The Official Nintendo Player's Guide (Nintendo of America, 2002), p. 113

Boss room

Sea of Trees Boss, Boss room