Polar Bears International is a source for information about, and conservation efforts for, polar bears.

They have a downloadable guide with great facts and pictures and a free print and play board game (not much of a game, but there you go).

(download)

P.S. I wonder if they made a video game out of that cute sequence in An Inconvenient Truth where the polar bear has to leap from ice flow to ice flow to keep from drowning.