The Rolling Beast

A red sphere guarded the corridor! Smooth. Shiny. Defiant. I locked my eyes on the challenger and charged without hesitation! Wham! My snout slammed hard into its rubber hide! It did not shatter—it bounced! It raced away down the floor boards with a loud hum. Victory! The red invader was routed by my sheer brute force! The hallway is mine now.