You can reduce the security level, add www.greenfoot.org to the exception list and make sure the java plugin is up to date. The game seems to work just fine here.
I'm getting this in console:
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at Hexy.act(Hexy.java:77)
at greenfoot.core.Simulation.actWorld(Simulation.java:574)
at greenfoot.core.Simulation.runOneLoop(Simulation.java:509)
at greenfoot.core.Simulation.runContent(Simulation.java:215)
at greenfoot.core.Simulation.run(Simulation.java:205)
Yes, I already saw this, but I did not say that I wanted to do it. I don't have enough time to start a new project right now. I will finish the one I am working on and then I will probably won't have time for Greenfoot for one or two month.
I said it in case someone needs an idea to work on. ;)
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