Blizzaurus

Blizzaurus is the Sixth Boss of Super Princess Peach, since she appears at the end of World 6, Gleam Glacier.

Boss Battel!
When you enter her lair, the Perry Block tells you that the boss's weakness is fire. When you enter the boss arena, Peach finds a treasure orb, and Blizzaurus stands behind it and hits Peach with an ice beam after Peach stands still and takes it like a damsel in distress. Blizzaurus has two phases, a dragon form that takes three hits, and a pixie form that takes two hits. Her dragon form has three attacks, she can shoot an ice beam that freezes Peach if she doesn't duck, a charge attack that damages Peach if she doesn't get out of the way or damage Blizzy, and she can hop a few times which causes stalagmites to emerge from the ground. She has a sheild of ice surrounding her that breaks after three burnings from Peach's fury emotion, and breaking it causes her to both take a hit and regain the sheild back after her invincibility phrames. Jumping on the sheild won't hurt Peach, she just bounces off of it. Peach can also collect jewels from destroying the stalagmites with her parasol in case she runs out of "emotion power". I think she heals her sheild after a while but I don't remember. Her pixie form has only two attacks, she can shoot three circles that circle around her while shooting outwards, and she can scream, which causes stalagtites to fall from the ceiling and pierce into the ground. Her weakness is the same as her weakness from her dragon form, burn her ice sheild three times to damage her, though this can be more difficult this phase since Blizzaurus is flying pretty far above Peach, and you'd probably have to jump a few times to get within enough range to burn through her ice sheild. Similar to the dragon phase, destroying the stalagtites will have jewels pop out for you to regain "emotion power" from. I think she heals her sheild during this phase as well after a while but I don't remember either. Blizzaurus's death animation consists of her in her pixie phase screaming slightly louder than how she screams during her scream attack from her pixie phase, and then both spinning around from her feet and shrinking until she becomes as small as a speck and then combusts from the pressure. The treasure orb then floats down magically from the sky and Peach is very happy despite the fact that she just had to murder a dragon/pixie that tried to kill her.

Trivia

 * Blizzaurus is the second fully original boss from Super Princess Peach, the first being Hoo.
 * All bosses from Super Princess Peach have different emotions during each of their second phases, the different types of emotions being Joy (Which makes the battle more aerial-based and have projectiles spin in a circle around the boss), Fury (Which makes the bosses move or move faster), Sadness (Which can remove certain objects from the battle), and Calmness (Which summons a giant bubble that heals the boss if it doesn't get destroyed.) Blizzaurus's emotion is likely Joy, since she becomes airborn during her second phase, shoots projectiles that spin in a circle, and shares very similar sprites to Peach's Joy animations.
 * Blizzaurus is also the only officially female boss from Super Princess Peach. Bosses like the Giant Kamek and Wiggler have unknown genders.
 * Blizz's gallary article states that she was sealed away into her dragon form, presumably by someone else.
 * The most likely reason for getting sealed away would be that she was too powerful / violent, given that she tries to kill you both during and as soon as she's released from her dragon form for no reason.