Dragon Kazooie

The Dragon is a secret transformation that you get if you give Humba Wumba the Mega Glowbo, obtainable only by unlocking the Ice Safe with the Ice Key. However, this transformation does not work on Banjo. Instead, it makes Kazooie a fire breathing dragon! This transformation is different from the rest, as it can go into every world, and is the only transformation that affects Kazooie. By holding down B while standing still, Kazooie can breathe fire, and she can also use an infinite amount of Fire Eggs. Her voice also deepens a bit in pitch.

Trivia

 * While Kazooie's outward appearance dramatically changes, her shadow bizarrely stays in the shape of a normal breegull. Her character portrait when speaking also stays the same. However, when she Splits Up from Banjo, her shadow becomes representative of her dragon-like appearance.