I don't know if this has been shared before (The search function got a forbidden error) but there's an easy way to fullscreen the game.
http://cache.armorgames.com/files/games/the-last-stand-union-12009.swf
I found this with the "inspect element" feature. It connects you directly to the game without loading the rest of the page.
You just need to fullscreen your web browser and it works perfectly.
But I also tried downloading the .swf directly and it works just fine offline.
I thought maybe they updated it for offline play but that still doesn't explain the lack of a fullscreen button.
http://cache.armorgames.com/files/games/the-last-stand-union-12009.swf
I found this with the "inspect element" feature. It connects you directly to the game without loading the rest of the page.
You just need to fullscreen your web browser and it works perfectly.
But I also tried downloading the .swf directly and it works just fine offline.
I thought maybe they updated it for offline play but that still doesn't explain the lack of a fullscreen button.