And this is all you want, why not find the XDA forums and see if they have a rom (brain) for your Nook.
It won't turn out so badly. Well, then again.
http://www.youtube.com/watch?v=yH97lImrr0Q
Bob
Developer (Rovio?) disabled Rio for 16 G Nook;
anything else available? Or do I have to do something
frankensteinian to my Nook?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic