Blue Eggs are used as the sole projectile weapon in Banjo-Kazooie, and are 1 of 5 types of projectile eggs in Banjo-Tooie. Kazooie can shoot them out of her mouth or her backside. She can hold a maximum of 100, or 200 if a cheat code from Cheato is used. The blue eggs are an important factor in the games such as filling a Blue Egg Toll or defeating Gruntilda.