After the pain yatta fight there is a traptanium crystal that needs to be destoryed to the right of the cage that opens a bridge to an area with a large button. When you step on the button the platform lowers to an area with a water fountain and 12 golden balls. these balls are very fragile and if one breaks this will need to be retried. these balls need to be gently pushed to the edge of the are closest to the front and over waterfall