The problem with the checkbox only available in the English version sounded very strange to me (that's not supposed to be like that!), so I just investigated. It is an unfortunate formatting problem. Because the German checkbox text is longer, on some systems with specific fonts, it will not fit into the dialogue box, and scroll down into an invisible area of the dialogue. (Unfortunately, the dialogue does not resize as it should.) The checkbox is there, just not visible. Fix: resize the Export dialogue manually (make it bigger). You should see the checkbox, even in German. We will attempt to fix this.

Are you using static fields for the ammo/level/score and the ships? That's not good - you cannot reset the game this way. After playing once, you cannot play again...

The problem with the funny display around the edges is a Greenfoot restriction: You cannot place actors outside of the world area. (Maybe we should allow that?) And if you remove them from the world while they are out of view, they wouldn't get their act method called. There are two possible solutions to this: either you (temporarily) remove them from the world and enter them in an 'off-screen-actor' list of your own, where you call the objects' act method yourself (from the World act method); or you leave them in the world, but give them (temporarily) an empty image.

I've added a display for some of the points now. Thanks to svenancio for publishing your source -- I have used one of your sounds for my 200-points-tone.

Great game play. I found a few little problems: - I died, and the score counter was counting up for a long time afterwards. You probably have to change the counter to count up faster (or update immediately) to keep up with the points you can get. - It said at the end: Greeps killed: 0 (but I think I did get some) Asteroids destroyed: 167 Space ships destroyed: 223 The last two numbers seem to high. I'm pretty sure I didn't get that many... Good fun playing, though!