To defeat the first boss make sure the boomarang is set to "B". When you first enter there will be two vines sticking out of the water. On two platforms there are bomb spiders. While dodging attacks from the two vines target the bomb with your boomerang then target the plant. Release the "B" button and the boomerang will pick up the bomb and carry it to the flower and it will die! Do this to both of them! Thats not all! Than the two little ones will sprout up with another big one! Now the bomb spiders are gone! The mini-boss monkey swings fro the sky and he will carry a bomb! Now target the bomb and take out the little ones first. Then go in for the kill! Repeat to the big one and it will fall! Slash it a few times and it will be toast!