I would just like to know how to make a game over screen and display the score underneath the gameover text at the moment. :) If someone could teach me how it will be greatly appreciated!

First, create a GreenfootImage object of whatever size you desire for your main image of the actor that displays the game over screen. Then create the images with text content as discussed in the tutorial and draw them onto the main image. Finally, create a new SimpleActor object, set the main image to it and add it into the world.

Is it greenfoot that you are a newbie to? or, is Java that which you are really unfamiliar with? I believe that if you were familiar with java that you would probably understand what I stated in my last post. At any rate, there is sample code within the tutorial that applies to each step given in my last post.