Greetings fellow ChucKists, Inspired by Kassen's comments, I expanded that example that I posted of moving a button with the mouse. Now it is a complete little one-person Pong game. I posted it to the WiKi under Example Programs, and also to the forum. It's actually more like Breakout because the paddle is on the bottom of the window, not the side. Each time you hit the ball you score a point when it reaches the top and each time you miss the ball ChucK scores a point when the ball travels off the bottom of the screen. Naturally, I added some sound effects to make it complete. There is some ghosting if you move the mouse too quickly but otherwise it works like a charm. What is next, ChucK Quake? Les (Inventor)