Instructions
Stand within view of the wooden steed and press "Square" to open the Popit menu.
Use the left analog stick to highlight "Stickers and Decorations." Press "X" to select.
Use the left stick to navigate to the "Decorations" window, then highlight the "Donkey Tail" decoration under "Switch Triggers." Press "X" to select.
Use the left stick to position the donkey tail over the flashing green dot near the wooden steed's rear. When the steed begins to glow green, you've correctly positioned the tail. Press "X" to place it.
Ride the completed steed to the end of the level.