Convert Java JFrame GUI to Java Applet

I have a GUI game written in Java, and the class extends JFrame, which makes it out of my scope of knowledge to convert to an applet. My goal is to have this class converted to an applet that can be embedded on my website with an HTML tag. I know how to handle the HTML stuff; I need you to convert the class to an applet. The class is 856 lines of code and if you're someone who knows your stuff, I don't think it will be too hard. Of the eleven files attached, the ONLY one that needs modification is Game.java. Everything else is included to help your understanding of how [login to view URL] works and because [login to view URL] makes reference to them. I don't think that this should take more than a few hours if you know what you're doing. You can take as long as you need; there's no rush for this. I would simply like to include it on my website in the next few months.