This Fun Comes First!™ The Having a Ball™ Roll & Pop Fire Truck gets the fun moving! The locomotive is fed when baby drops balls into the vehicle. The Fire Truck begins to move and flashes light when the melodies and silly sounds play. One by one the balls pop out to begin the fun all over again. Press the 3 buttons for letters, colors, and melodies. This fantastic vehicle will help your baby laughing and moving.