A powerup in [i][[New Super Mario Bros. U Deluxe]][/i] that transforms [[Toadette]] into [[Peachette]], a [[Princess Peach]] lookalike retaining some original form attributes, with Peach's abilities and more.
Canonically, the game's official website states only her can use it.

Fans, however, used it to similarly transform [[Bowser]], and from there on [[King Boo]], then many more characters, and even [[personification|personify]] items, from the [[mario (series)|Mario universe]].
More specifically in human female, but no additional abilities.
The more esoteric the subject, the less “lookalike” or even “human” applies.

This is called “peachifying” (ピーチ姫化).
The result is typically named with either an "-ette" suffix (in reference to Peachette), or by default a “princess” title like Peach ("-Hime" suffix in Japanese).

h4. Tagging rules
According to topic #15603, peachifying is its own distinct change and resulting character:
* Don't tag the regular form character or [[Princess Peach]]. (post #3262233).
* Don't tag [[cosplay]]. (post #3262904)
* Tag [[transformation]] only if the change is shown or suggested. (post #3262233).
* Tag [[genderswap]] only if the change is shown or suggested, or the expected result is swapped. (post #3265315)
* Copyright tag with [[New Super Mario Bros. U Deluxe]], not the origin of the character's regular form.
…unless otherwise also present caveat for all these rules.

h4. Known Super Crown transforms

* [[Bloopette]]
* [[Bowsette]]
* [[Bowsette Jr.]]
* [[Crownette]]
* [[Peachyboo]]
* [[Princess Baby Bowser]]
* [[Princess Birdo]]
* [[Princess Blargg]]
* [[Princess Bob-omb]]
* [[Princess Bullet Bill]]
* [[Princess Chain Chomp]]
* [[Princess Chargin' Chuck]]
* [[Princess Cheep Cheep]]
* [[Princess Dry Bones]]
* [[Princess Goomba]]
* [[Princess Iggy Koopa]]
* [[Princess King Boo]]
* [[Princess Koopa Troopa]]
* [[Princess Lakitu]]
* [[Princess Larry Koopa]]
* [[Princess Lemmy Koopa]]
* [[Princess Ludwig Von Koopa]]
* [[Princess Magikoopa]]
* [[Princess Morton Koopa Jr.]]
* [[Princess Petey Piranha]]
* [[Princess Piranha Plant]]
* [[Princess Pokey]]
* [[Princess Roy Koopa]]
* [[Princess Shy Guy]]
* [[Princess Thwomp]]
* [[Princess Toad]]
* [[Princess Waluigi]]
* [[Princess Wario]]
* [[Princess Wendy O. Koopa]]
* [[Princess Yoshi]]

h4. External links

* "Super_Crown on Super Mario Wiki":https://www.mariowiki.com/Super_Crown
スーパークラウン ピーチ姫化