First. go to the game's page that you want, then right click with mouse and click page source. Then find the sentence that looks like this:
"src", "/files/games/learn-to-fly-3789.swf",
copy the /files/games/learn-to-fly-3789.swf out of the sentence.
then, type in the link box, www.armorgames.com then copy paste the /files/games/learn-to-fly-3789.swf to the end of it. now you should have full screen games, it worked for me! I am using fire fox, latest version, hope it works for you!
Note, there are repeated of these lines in there, so you need to find the one that works. I sometimes have to look a couple times to find the right one, then I just save that one to my favorite bookmarks. this works, you just need to try!
The good things about this is that it runs quicker with less stuff on the screen, and .. well the screen is bigger, need I say more???