It's arms get bulkier, spare brain stem forms a half-halo horizontally on the back-top of it head, the horns become sharper and bigger, and it's eyes turn red. It definitely has a sinister appeal. If size is mentioned... http://www.gamefaqs.com/boards/696959-pokemon-x/65987479 Downsizing may make it more agile (except for it's now huge, disproportional, alien-looking head) and difficult to hit.
Yeah get used to it. If you've got a problem with Mickey Mouse you're in the wrong series.~Drizzy_Drizake
One thing I always noticed about the awakened forme is his levitation. I haven't seen an image or clip of him standing on his feet. That shows power to me. Granted ghosts and other types levitate but that's the games mechanics. The show is slightly different. *shrugs*