Very good! Yes that makes sense for the listbox, (possibly also for the dropdownlist) not sure for what other places? Thank you for the suggestion. I will try to implement that soon. Nice to have constructive feedback, mostly only have additions to this set of classes through my own specific needs in my projects. I know I have been asked for graphic options at least once, unfortunately it requires a great deal of extra "fluff" to integrate within the already somewhat complicated items, while the existing graphic simplicity has always had its appeal (to myself).

I am working on extensive documentation/comments. And I do believe having a GUI that works "inside" Greenfoot is more elegant for Greenfoot projects than using swing that "interrupt" the program.

I will consider some graphic options when I get everything done, but focus now is on functionality, which there is always more to do in different projects. And basic is always clean =)

I got the following when I got to the stairs java.lang.IndexOutOfBoundsException: Index: 3, Size: 3 at java.util.ArrayList.RangeCheck(ArrayList.java:547) at java.util.ArrayList.get(ArrayList.java:322) at EventScript.getIntCommand(EventScript.java:915) at EventScript.excecuteCommand(EventScript.java:617) at EventScript.act(EventScript.java:567) at greenfoot.core.Simulation.actActor(Simulation.java:507) at greenfoot.core.Simulation.runOneLoop(Simulation.java:470) at greenfoot.core.Simulation.runContent(Simulation.java:204) at greenfoot.core.Simulation.run(Simulation.java:194) Also It's possible to ride the elevator from the hallway. The text still sometimes doesn't fit on screen. But looking good!

Nice! I like the rolling feel of the control of the ball. Some kind of upgrade/change in environment may be cool. Maybe a progression could lead to where the platforms didn't necessarily move upward and maybe some other forces could be "chasing" you which will destroy your ball if touches. Just ideas! Good work. Got to level 4, score: 2751 =)