ALRIGHT! I shared my game and created a webpage with an applet through greenfoot. I then uploaded the .html file and all the files required online to see if I could view the game online. The game works when I use the original jar that greenfoot makes. However I want to use the edited jar file which removes the run & reset buttons (http://www.greenfoot.org/topics/2152/0) <-- can be found there. When i replace the original jar file with the updated jar file (updated jar file being the one without run/reset buttons) I get the following error: incompatible magic value in class file greenfoot.export.GreenfootScenarioViewer I am wondering if there is a way to remove the run/reset buttons and post the game online without getting an error.