I'm pretty sure they couldn't upload Neopets, that's a whole site with a couple hundred other games you can play inside it.
I agree with this, that's almost impossible! Also it's very difficult to get something like that in your website, because it's something totally different and it's not really a game..
also you could just play them on their sites if you are really bored, why play them in here when they have their own sites?
so i think it'sa bad idea and as mrtim said, it's plagiarism
Another thing is that they want to keep it exclusive to their site. If you can only play it on their site they make a lot of ad revenue which makes them money.
