It's easy. Download the game (swf) from here
http://www.thatvideogamesite.com/play.php?id=48 copy it to your PSP root
then open your browser, select file and type this in.
file:/48-game.swf
Say yes to run plugin.
It will start to load but error with an "out of memory" issue. Even if you conserve memory, it will not help.
This is on my PSP slim.
So, the game doesn't need porting, it needs more ram.
You can try this method with just about any SWF game. Some will work, some wont.
Unfortunately, this one does not.