I added and fixed a lot. The variable in the corner shows the distance to the ball (even the Z distance!) using the Pythagorean property. I edited the background, coin, ball, and logo using GIMP. It is the same set of letters (Nepali) repeated over and over using the Neon Glow logo setting with 4 bands. ALSO, IMPORTANT: You can now visibly see a wall. I'm really too lazy to actually think up a trigonometric formula, but can somebody make it so that the ball bounces of either wall directly (or inversely as it may be) proportional to its X and Z positions. People who are good at incorporating trig/calculus stuff into Scratch, we're counting on you! EDIT: Never mind, I guess you could just make it bounce exactly where the outer grey lines are and let dimensional perspective deal with the rest.