You ask at the end of the game so far whether the language is ok - in answer, yes, it's good! I've wrote up a file with some (mainly really minor) changes: http://pastebin.com/BP1fwwGC Also, there appears to be some bugs: - Health doesn't regen to full if you press 'Reset' - You don't lose your weapons if you press 'Reset' The second bug was really fun, because I managed to get the gun, press 'Reset', and then shoot people in the kitchen! xD Though I haven't looked at your code, I assume you're storing health and guns as static variables - the problem with this is that Greenfoot doesn't reset static variables when you click 'Reset' - they're only reset when (on the website) the page is refreshed or (in Greenfoot) the scenario is recompiled. This is an easy fix though - just make it so that in whatever code is being executed to set up the initial world, (a constructor) just reset the static variables there. However, it might be better to change to a more OOP approach, where the health/weapons variables aren't static.

Thank you very much for your correction! :) Thank you for telling this bug! I've got the player as a static variable, that the game will work faster. It is a little bit more complex to solve this in this game, beause I need to duplicate the player at the checkpoints, to be able to reset him with all his weapons, amo, colors, etc.. But I managed to solve it! :)

I can't get past the difficulty selection screen. whenever i try to click on something, the game pauses. The DoctorProfessor is out!

mhh... well... maybe you can try to start this scenario with another computer? This game needs a little more main memory, than the most games here in Greenfoot... And I think, that is the reason, why it won't start for you... Have you tried to open it in Greenfoot?

I almost freaked out to get the 'I'm just a shadow' - medal! It's only possible to get this medal on the stage, where you need the four keys, isn't it?

Thank you very much Gevater_Tod! And yes, I completely programmed it in this month! :) I just got the idea for this, when I read the topic about the competition.

Impressive! Especially with me only having 'watch the intro'... Btw, would you like it when I add this to my next voting? (http://www.greenfoot.org/scenarios/9166)