Wonder Flower

A Wonder Flower is a flower power-up that appears in Super Mario Bros. Wonder. When collected, it activates Wonder Effects, which change some mechanics in the level or transform the player. Wonder Flowers come in different colors depending on the world in which they are found, such as blue, red, green, yellow, and purple. It also plays a major role in the game's plot, as Bowser arrived in the Flower Kingdom to steal one of the flowers for his own use, managing to succeed in front of everyone and using it to merge himself, his Koopa Clown Car, and Prince Florian's Castle together to form a flying fortress in his own likeness.

Concept and creation
The Wonder Flower was conceived as part of an effort to introduce surprising elements that would challenge the player. The original idea was to include items that would warp players to a new area but producer Takashi Tezuka found the idea uninteresting, stating, "If you’re still just going to warp to a different area, it’s still the same. Why don’t you just change where you are right now?" To gather suggestions for effects the Wonder Flower could have, director Shiro Mouri and Tezuka pooled the entire development team of Super Mario Bros. Wonder no matter their seniority or role on the project, receiving a little over 2,000 suggestions.