What is the "Dictionary" pane on the right for? Anyway, nice effects, I like the way the ball leaves a clean trail and the paddle bounces when the ball hits it.

Very nice, especially the effects when knocking down balls. The only problem is that it often seems to freeze and use 100% CPU, and you can't play any more. By the way, the ball graphics are from a popular Linux game called Frozen Bubble. Does this mean you are also Linux user?

I use Linux and it appears fine for me. Maybe OpenJDK (default in most Linux distros) uses a different font that Sun Java. Before, when I used OpenJDK, Greenfoot Gallery scenarios were very slow, and fonts were wrong and didn't fit into things.

You might like to watch the "Platform games: running, falling and jumping" video tutorial here: http://www.greenfoot.org/doc/videos.html

It does nothing for me! It says "Use HELP button for instructions", but there is no help button!