Scribblenauts Is A Great Puzzle/Adventure Game. The 2 categories in the Game are Puzzle and Adventure.
The game has 22 Levels for each world. There are 10 worlds in the Puzzle and Adventure categories (11 worlds if you include the Tutorial world).
In Scribblenauts you play as Maxwell . You type things and they appear on the screen. You use those items to complete the levels.
The Game can be fairly easy or challenging depending on the stage. The Puzzle Stages are harder.
Overall I give the Game 10 out of 10.