Use the mouse to throw the ball around and the space button to hide the variables. Press C to clear the pen. A - Type The Gravity Value Gravity Modes: G - Weird R - Random W - Writes out the Values of Velocity and Something To Cancel Them, Press H Have fun! V2 Added More Custom Gravity and You can Type The Value and Added a Language Ball (If it Collides, It says Boing in Different Languages) V1 Added gravity functions and new ball types. V.0.1 Changed the pen color to change with the ball V.0 Published Ball Bouncing Physics