Giant Blue Egg

The Giant Blue Egg is a special item found in Banjo-Kazooie. It is located behind a Note Door that requires 828 Musical Notes to unlock in the very last room before the final battle with Gruntilda in her lair.

Collecting the egg will completely replenish Banjo and Kazooie's supply of Blue Eggs. It is not required for the final battle, but it is very useful.