So this game has problems you must solve to get what you need, but you can say whatever you want as your tool, there is no set solution. An item up in a tree you need? Just write Beaver or ladder on the screen, and see what happens, but write Goldfish it may just sit there and do nothing. I even saw a cop chasing a donut in the the trailer because it was written. Lol. What? According to interview about the game, you could even put lasers on sharks if you want. Page two of the IGN article explains the coding behind the game. It is very interesting. Such as the game knows humans are "animals", animals eat food, a donut is a food, so the character is going to interact, without specifically telling the code to have a cop chase a donut.
I imagine this game is full of words and matching items and actions to them. Looks like it could be a pretty unique game.
http://scribblenauts.com/trailers.htmlhttp://ds.ign.com/articles/936/936157p1.html