Fungi Mines is World 5 in Super Mario Bros. Wonder, a glowing underground world of giant mushrooms, toxic ponds, a haunted mansion, and slime-filled ruins. This guide covers all 22 collectibles – the 21 regular Wonder Seeds plus the Royal Seed, including the three hidden Uncharted Areas – course by course, from our own gameplay footage.
Quick Overview
| Game | Super Mario Bros. Wonder |
|---|---|
| Area / Level | Fungi Mines (World 5) |
| Total | 21 Wonder Seeds + 1 Royal Seed |
| Best Route | Upshroom Downshroom -> Taily’s Toxic Pond -> Light-Switch Mansion -> Beware of the Rifts -> the three Uncharted Areas -> Operation Poplin Rescue |
Wonder Seed Locations
Upshroom Downshroom
- ✓Seed #1 · Wonder Effect
- ✓Seed #2 · Course Clear
Finish the Pumpkin Party Wonder Effect
- Touch the Wonder Flower hidden partway through Upshroom Downshroom.
- The Pumpkin Party Wonder Effect darkens the cave and fills it with bouncing pumpkin platforms; ride them upward.
- Grab the Wonder Seed at the top of the pumpkin climb to end the effect.

Reach the Upshroom Downshroom Goal Pole
Touch the Goal Pole for the Course Clear Wonder Seed.
Taily’s Toxic Pond
- ✓Seed #3 · Wonder Effect
- ✓Seed #4 · Course Clear
Answer the Toxic Pond Quiz
- Grab the Wonder Flower partway through the level. Three differently colored Tailies appear, each representing a different answer option.
- Defeat the Taily that holds the correct answer. You need three correct answers within 90 seconds; wrong answers are allowed.
- Answer three questions correctly to claim the Wonder Seed. Expand the cheat sheet below for all known questions.

Reach the Taily’s Toxic Pond Goal Pole
Touch the Goal Pole for the Course Clear Wonder Seed.
Light-Switch Mansion
- ✓Seed #5 · Wonder Effect
- ✓Seed #6 · Course Clear
Survive the King Boo Chase
- Find the Wonder Flower inside the dark Light-Switch Mansion.
- The Wonder Effect summons a giant Boo; keep moving and flip the light switches to hold the Boos back.
- Reach the Wonder Seed at the end of the chase.

Reach the Light-Switch Mansion Goal Pole
Touch the Goal Pole for the Course Clear Wonder Seed.
Beware of the Rifts
- ✓Seed #7 · Wonder Effect
- ✓Seed #8 · Course Clear
Collect the Wonder Flower Pieces
- Hit the marked block to scatter the Wonder Flower pieces across the rift area.
- Collect all five scattered Wonder Flower pieces while the rift arena is active.
- Gather the final piece to claim the Wonder Seed.

Reach the Beware of the Rifts Goal Pole
Touch the Goal Pole for the Course Clear Wonder Seed.
An Uncharted Area: Wubba Ruins
- ✓Seed #9 · Wonder Effect
- ✓Seed #10 · Course Clear
Complete the Wubba Ruins Wonder Effect
- This Uncharted Area unlocks once you have collected six Wonder Seeds.
- Lure the box-carrying enemies into the block to reveal the Wonder Flower.
- Clear the slime-transformation challenge to collect the Wonder Seed.

Clear the Wubba Ruins
Touch the Goal Pole for the second Wonder Seed.
Another Uncharted Area: Swaying Ruins
- ✓Seed #11 · Wonder Effect
- ✓Seed #12 · Course Clear
Complete the Swaying Ruins Wonder Effect
- Ride the spike enemy to the locked door to enter the swaying section.
- Trigger the Wonder Flower and navigate the slippery, tilting floors.
- Collect the Wonder Seed at the end of the effect.

Clear the Swaying Ruins
Touch the Goal Pole for the second Wonder Seed.
A Final Uncharted Area: Poison Ruins
- ✓Seed #13 · Wonder Effect
- ✓Seed #14 · Course Clear
Touch Every Rotating Flower
- This final Uncharted Area unlocks once you have collected eleven Wonder Seeds.
- The Wonder Effect turns Mario into slime; ride the rotating circular platforms.
- Touch every green flower on the spinning rings to earn the Wonder Seed.

Clear the Poison Ruins
Touch the Goal Pole for the second Wonder Seed.
Grappling Vine I
- ✓Seed #15 · Badge Challenge
Complete Grappling Vine I
- Enter the Grappling Vine I badge challenge.
- Use the Grappling Vine badge to swing across the wide gaps.
- Reach the goal to earn the Wonder Seed.
Fungi Funk
- ✓Seed #16 · KO Arena
Clear the Fungi Funk KO Arena
- Enter the Fungi Funk arena.
- Defeat every wave of enemies before the time runs out.
- Collect the Wonder Seed for clearing the arena.
Tumble House
- ✓Seed #17 · Bonus Course
Solve the Tumble House
- Step on the Exclamation Button to start the Tumble House sequence.
- Ride the turning gear platforms and collect all five Wonder Tokens.
- Grab them all to reveal the Wonder Seed.
Trottin’ Piranha Plants
- ✓Seed #18 · Break Time
Defeat the Trottin’ Piranha Plants
- Enter the Trottin’ Piranha Plants Break Time course.
- Bounce on the musical Note Blocks to reach and defeat every Piranha Plant.
- Clear them all to earn the Wonder Seed.
Loyal Poplin’s House
- ✓Seed #19 · Poplin House
Visit Loyal Poplin’s House
- Walk onto Loyal Poplin’s House on the Fungi Mines map.
- The Poplin inside hands you a Wonder Seed from a chest.
- Accept the gift to add it to your total.
Poplin Shop
- ✓Seed #20 · Poplin Shop
Buy the Poplin Shop Wonder Seed
- Visit the Fungi Mines Poplin Shop.
- This Wonder Seed is on sale for Flower Coins rather than hidden in a course.
- Purchase it to claim the Wonder Seed.
Operation Poplin Rescue (Palace)
- ✓Seed #21 · Finale
- ✓Seed #22 · Royal Seed
Complete Operation Poplin Rescue
- Enter Operation Poplin Rescue, the Fungi Mines finale.
- Rescue the missing Poplin Miners trapped throughout the level.
- The freed Poplins reward you with the Wonder Seed.
Claim the Fungi Mines Royal Seed
- Reach the Fungi Mines Palace at the end of the world.
- Complete Operation Poplin Rescue – Fungi Mines has no traditional Palace boss.
- Collect the Royal Seed to open the next stretch of Petal Isles.
Sources and Image Credits
All screenshots in this guide are captured from The Gaming Guide Archives’ own Super Mario Bros. Wonder footage. Super Mario Bros. Wonder and related game visuals are property of Nintendo. Route names, world totals and Wonder Seed types were verified against the Super Mario Wiki Fungi Mines and individual course pages.
FAQ
How many Wonder Seeds are in Fungi Mines?
Fungi Mines holds 21 Wonder Seeds plus one Royal Seed. The Royal Seed comes from the Fungi Mines Palace and opens the next stretch of Petal Isles.
How do I unlock the Uncharted Areas in Fungi Mines?
The three Uncharted Areas appear once you have collected enough Wonder Seeds: Wubba Ruins unlocks at six seeds, Swaying Ruins unlocks once Wubba Ruins has been completed, and Poison Ruins unlocks at eleven seeds. Collecting seeds from the main courses first reveals them on the map.
Where are the two extra Wonder Seeds that are not in courses?
Two Wonder Seeds come from the Poplin buildings: Loyal Poplin’s House gives one for free from a chest, and the Poplin Shop sells one for Flower Coins.
Do I need every Wonder Seed to finish Fungi Mines?
No. You only need enough Wonder Seeds to open the gates to the Fungi Mines Palace. Collecting all 21 plus the Royal Seed is for full completion and counts toward unlocking the Special World.
Are the screenshots from your own playthrough?
Yes. Every screenshot in this guide is captured from our own Super Mario Bros. Wonder gameplay on The Gaming Guide Archives channel.
Who is the boss of Fungi Mines?
Fungi Mines has no Palace boss. Instead, the Royal Seed comes from Operation Poplin Rescue, where you free the trapped Poplin Miners at the bottom of the mines.






























