關於the incredible的問題

There are many information when you visit this website.
http://en.wikipedia.org/wiki/The_Incredibles
You can find the plot in the above website.
最喜歡的情節︰
I like the moment when Jack-Jack's innate superhuman power manifests itself as the ability to shape-shift into a number of difficult-to-handle forms, the last being a devilish being, causing Syndrome to drop him. Bob throws Helen into the air to safely catch Jack-Jack(copy from the above website) because I cannot imagine that Jack-Jack can change his form and bite his enemy! It is difficult to guess that the ending will like that so I like this scene very much.