Boo

Boo is Minsc's pet and companion. According to Minsc, Boo is actually a 'Miniture Giant Space Hamster' who is intelligent and can clearly communicate with him.

Boo appears in one of Minsc's quick item boxes, which is where potions and scrolls would go. If the player clicks on Boo, he will make a squeak and will run away as you try to get him while Minsc will give you a harsh glare.

Some of Minsc's dialogue includes Boo in it, e.g. "Go for the eyes Boo, GO FOR THE EYES!! RrraaaAAGHGHH!!!" and "Camaraderie, adventure and steel on steel. The stuff of legends! Right Boo?".