Here’s every Wonder Seed and Flower Coin in the bonus levels in Petal Isles in our Super Mario Bros. Wonder walkthrough.
Not every level gets the full Wonder Seed and Flower Coin treatment, so we’re listing all the bonus levels from World 1 right on this page. The amount of Wonder Seeds and Flower Coins varies by level.
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Feel free hop around to the bonus level you’re looking for:
Swimming!
There is a single Wonder Seed in this level.
Wonder Seed 1
Spamming the Dolphin Kick badge and taking the direct path forward will get you this one fairly easily. Still doable without the badge too!
Spelunking!
There is a single Wonder Seed in this level.
Wonder Seed 1
Another Wiggler race. Let’s go over a few tips. Jumping seems to be faster than trying to run up a slope, so leap when you can. Try to cut corners, especially in the area where you’re starting to move vertically a bit. In the final section, you don’t have to make massive jumps! Focus on landing on enemies or platforms and less on trying to clear giant gaps.
Petal Meddle
There is a single Wonder Seed and three Flower Coins in this level.
Flower Coins 1-3
Complete the level in 80 seconds to get all three Flower Coins at the end. We found the Bubble Flower to be quite effective against the Cheep Cheeps and the Nippers, especially the ones clinging to the walls. For the Maw-Maws, take note that you can defeat them with a single ground pound!
Wonder Seed 1
Survive and reach the end of the level.
Additional Collectibles
Wonder Seed 1
Collect from the Angler Poplin’s House.
Wonder Seed 2
Purchase from the Poplin Shop for 100 Flower Coins.
Wonder Seed 3
Purchase from the Poplin Shop for 100 Flower Coins.



