Bouncy is a simple, joyful little app: fling a ball across your screen, and watch it bounce off the walls — playing a cheerful musical note each time it hits. Every bounce produces a tone from the diatonic scale, so the ball essentially plays a little tune as it moves around. A visual effect (powered by Android's AGSL shader language) that changes by each wall hit. That's the whole app. No levels, no score, no accounts — just a ball, some physics, and a bit of music. Features: * Fling the ball with a swipe and watch it go * Each wall bounce plays a note from the diatonic musical scale * Smooth, realistic physics using Android's FlingAnimation * Visual glow effect rendered with AGSL distance field shaders * Extremely lightweight: the entire app is under 18 KB * No internet connection, no ads, no tracking, no permissions