I feel that for the rarity of the SWF objects that it takes to assemble a Game that you should be able to play it more than once. It could even give a random outcome once a day, like the current result of Flash crashing, or maybe one where "the world is closed" or one where you attempt to blow into the game to make it work before realizing that you can't blow into a program. Or a variety of things. I think it should be like the Music Blocks where you can play them anytime you want, but you only get XP from it once a day or so.
Note for everyone reading this and saying WTF is he talking about, read about it here