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How to Reach Castle Bowser in Super Mario Bros. Wonder

How to Reach Castle Bowser in Super Mario Bros. Wonder
By Alex Himlin on October 20, 2023
Updated:January 18, 2024
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Super Mario Bros. Wonder has just released globally and the game starts off with a bang!

Within minutes, Bowser comes into the picture, merging with Prince Florian's Flower Kingdom castle, and flying off to wreak havoc across the Flower Kingdom as Castle Bowser.

Super Mario Bros. Wonder - Castle Bowser; Pipe-Rock Plateau | Image: Nintendo Supply
Super Mario Bros. Wonder - Castle Bowser; Pipe-Rock Plateau | Image: Nintendo Supply

One thing is clear: Castle Bowser has to be stopped! But, how do you reach him?

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How to Reach Castle Bowser in Super Mario Bros. Wonder

After merging with Prince Florian's castle, Bowser heads off to the skies and is only seen at a distance. As the main enemy in Super Mario Bros. Wonder, you'll need to reach and defeat Bowser, but it's not immediately apparent the first time you see him after the intro sequence.

Bowser's Castle | Image: Nintendo Supply
Bowser's Castle | Image: Nintendo Supply

Royal Seeds and Castle Bowser

Upon completion of the Pipe-Rock Plateau zone, - the first area to explore on your journey - you'll receive a Royal Seed from defeating Bowser Jr.

Super Mario Bros. Wonder - Royal Seed | Image: Nintendo Supply
Super Mario Bros. Wonder - Royal Seed | Image: Nintendo Supply

The Royal Seed's use isn't immediately apparent, until you venture into the Petal Isles zone slightly after the first castle event. After progressing into the Petal Isles zone, the Royal Seed activates, zooming over to Castle Bowser in the distance and absorbing one of the Cloud Piranhas that are protecting Bowser.

Super Mario Bros. Wonder - Castle Bowser and Cloud Piranhas | Image: Nintendo Supply
Super Mario Bros. Wonder - Castle Bowser and Cloud Piranhas | Image: Nintendo Supply

Royal Seeds, not to be confused with Wonder Seeds and Wonder Flowers, are your key to getting to reaching - and ultimately defeating - Castle Bowser. Head on to the other zones and collect all the Royal Seeds!

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