Blizzaurus

Blizzaurus is a boss in the game Super Princess Peach. Her name is a portmanteau of blizzard and the suffix "saurus." She is battled at the end of World 6, Gleam Glacier. She appears as a giant dragon-type boss, but she is revealed to be just a Sprite.

During the battle with Blizzaurus, she mainly attacks with her massive body by charging directly at Peach. She is also capable of create glaciers from the ground, and has a devastating ice beam, which freezes anything that comes in contact with it. After Blizzaurus is weakened, she immediately reveals her actual form: a fairy. She flies around, constructing icicles and blasting them at the princess while being protected by her own ice force field. Peach is eventually able to defeat her using her Rage vibe.

Once Blizzaurus is out of the way, Peach is able to travel to Giddy Sky.

Trivia

 * Blizzaurus is the only boss in the game to not use any vibes upon being weakened (unless one considers her smiling to be a hint of her using the Joy Vibe).