Not really any faults.
I loved this. I mean, the guys expression was realistic, like a toddler his age. Slightly scared but awed by things like 'Rolling chairs' :P, and smiling at the cake he sees in front of him. Then again, he has magical powers :P. Maybe they're the force XD.
The graphics are flawless, and the story found meaning to everything. The chair has curly stuff to look fancy, but pointless, in the beginning, but when it quickly goes on to the guy's hands and hops on the table, the viewer feels satisfaction. Like 'Man, Mack Productions made everything important, he forgot nothing and didn't waste any time of the movie just sitting still!'.
Even more, the details are remembered. The cake has icing and what seems to be a pattern, and the light flickers for a couple seconds. And the backround moves around alot when the chair 'Rolls' to give a sense of speed and dizzyness. And the legs on the table quickly going straight forward was awesome. The Magic song fit again perfectly, maybe even better then the first. The only thing was that the Become guy looks a bit different. He must be growing :P. Overall, flawless in my eyes. Others may think differently. 11/10