Note: Do not lose Ride Armor. Have X and Zero, and Palette as navigator. With the Ride Armor, get to the area after destroying all the enemy Ride Armor. Palette will say there is something old nearby that can be useful. First, take the Ride Armor up the elevator to the enemy Ride Armor. Then, jump to the left and press Circle with Zero in Ride Armor. When you get to the spikes, quickly double jump to the ledge avoiding them. Switch to X to get the part.