Not long after the hall above,You'll have to fly through a narrow crawlspace. Shoot either side of the crawlspace entrance and flowers will appear.
After you beat the guy that spins around and shoots asterisks at you, you'll have to fight a frog-like guy on a platform. Each side of the platform contains a fox statue that will appear if you shoot there.
When you beat the boss of the game (that's the creepy looking guy with the four arms) you'll come to a room with two cylindrical cases hanging from the cieling. Shoot the left one to break it.