Enter the Hazy Maze cave as Wario and make your way to the Metal Cap Cavern. Once inside the cavern, quickly kill the two enemies until you get to the first sign. Read the sign and, while Wario is "reading" the sign, look to your left to see a sprite that looked like the enemies that you just killed. Keep moving the camera up, down, left, or right to make the sprite change from a Shy Guy to a yellow coin, red coin, or a Pink Bob-omb. When you finally leave the sign, there is actually nothing there