The Sweet Smell of Soda
From the Super Mario Wiki
Captain Goomba and Captain Shy Guy head into Chucklehuck Woods to find Iggy. A sweet aroma entrances them, and they are led into the Chateau de Chucklehuck, where Bubbles pounds into the ground to get rid of them. The two captains are forced to battle many Buzzy Beetles and Boos. Afterwards, there is a brief confrontation with Iggy, in which he says he plans to take out the woodland creatures.