Ook

Ook is the miniboss of the forest temple. Once you enter his chamber, he will start spanking his butt mocking you, then the battle begins. Dodging his boomerang is easy, but getting down from the pillars that he jumps around on is a bit harder. After he throws his boomerang at you, dodge it then roll right into the pillar that he is on. he will start to lose his balance and then get hit off the pillar by his own boomerang when it comes back. once he's down on the ground, head over to his butt and start slashing it. After you do this a couple of times, he will start to cut down some Serpent Babas down that will attack you. Kill them off and continue your routine with the monkey. After you defeat him you will notice that there was a Shadow Parasite on his head that was controlling him. Defeating him will also yeild the Gale Boomerang.
 * SPOILERS UP AHEAD*

hit 'is BUTT!!!