We have to go back a few years for these. When I first came to Sony Pictures Animation, I started working on Open Season as a character designer. My job was to develop the Boog character's design -- before the script was set. I did a series of sketches trying to figure out who this nine foot, 1,100 pound grizzly bear was.
Boog was raised as a house pet, and he's sort of a naughty child. The idea here, as Boog attempts to raid the cookie jar, is that he is completely unaware of his size and power.
I did a lot of exploration with the designs and attempted to move him around to get a feel for the way the character would move.
Once I had gotten a good feel for the character, I did some turns. In the end, I gave him fur-like pants that gave him a britches-feel to his fur, and large forelimbs with tiny paws and delicate claws that act like fingers.
Ultimately, my friend Carter Goodrich came on as the character designer, and I took the position of art director on Surf's Up. Despite the changes in the style and design for Boog, I was glad to see the ideas remained the same and made it into the final version.