Nintendogs is the fastest selling game for the Nintendo DS, and the sole reason why some people buy the DS in the first place. The virtual pet game, like the hit Tamagotchi of yore, has you pick a breed of dog, then train, pet, walk and wash it. When you're in wireless range of other Nintendo DSers, your virtual pets can play and engage in competitions. Nintendogs $39.99, Nintendo DS $169.99, Nintendo DS and Nintendogs bundle $179.99 from Future Shop, 2400 Yonge, 416-489-4726