Some of the later levels just get painful to be creative on, and you basically fall back on the standards (wings, lasso, pegasus, <insert weapon of choice>, hair dryer (to kill aquatic creatures), death, etc) to finish them. And while the dictionary is fantastic, the interactions are limited.

For example, make a fisherman and give him a fishing rod, and he doesn't catch fish.

I've beaten every level once, and I've had fun toying around with it, but it's basically one of those "suffers in comparison to its potential" games. I still really like it, but I lament what it could have been.