Castle of Illusions (E3) sits in the late East after the Lantern and Magical Flame reveal it beyond The Stagnant Swamp. Use the finder for every Gray, Red, Green, and Blue chest, all eight Musical Coins, and the Super Jump Slam route—with room-map links for Day/Night and each map variant.
FIRST CLEAR PRIORITY
Open the Gray Chest for Super Jump Slam Overalls
Carry the Gray Key to the Gray Chest and take the Super Jump Slam Overalls. This upgrades Ground Pound into Super Ground Pound so you can break reinforced floors. Come back later for the Torch (Forest of Fear route), Gold Magic, Rust Spray, and 100% Musical Coins as Sun Medallion, Super Grab Gloves, and Castle Brick open later variants.
E3 CHECKLIST · CASTLE OF ILLUSIONS
Castle of Illusions Finder
0 / 12 targets marked · browser checklist only
Map links open the Room & Target Index for this level. Match Day/Night and variant to your overworld state. Later variants can move routes; chest colors and treasure rewards stay the same. Checklist progress stays in this browser only.
ALL FOUR CHESTS · E3
Castle of Illusions treasures by chest color
Each chest needs its matching key color in the same level. Colors are not unlocked globally—if you drop a key, go back and pick it up again. Room numbers below match the default Day layout; open the map link for live markers on your current Day/Night and variant.
| Chest | Treasure | Key rooms | Chest room | What it does | Map |
|---|---|---|---|---|---|
| Gray / Grey | Super Jump Slam Overalls |
0, 10, 20, 21, 24, 26 | 12 | Permanent ability: Super Ground Pound. Breaks reinforced floors and unlocks late variants in several levels. | Open Gray Chest map |
| Red |  Torch |
13, 14 | 1 | Burns forest vines, opens Forest of Fear, and reconnects the east route toward The Peaceful Village. | Open Red Chest map |
| Green |  Gold Magic |
5 | 2, 17 | Unlocks Out of the Woods map variant 4 for late N1 revisit routes. | Open Green Chest map |
| Blue |  Rust Spray |
22, 23 | 3, 18 | Unlocks Cave of Flames V4, The Steep Canyon V4, and The West Crater V4. | Open Blue Chest map |
MUSICAL COINS · MUSIC COINS
All 8 Musical Coins in Castle of Illusions
Every level has eight Musical Coins. They are not required for the Perfect treasure screen, but finishing all 200 coins across the game unlocks Golf Building Course 4. Room numbers below match the default Day layout.
| Coin | Primary rooms | Also present in |
|---|---|---|
| Musical Coin 1 | 0 | 10, 20, 21, 24, 26 |
| Musical Coin 2 | 5 | — |
| Musical Coin 3 | 9 | 25, 28 |
| Musical Coin 4 | 9 | 25, 28 |
| Musical Coin 5 | 13 | 14 |
| Musical Coin 6 | 13 | 14 |
| Musical Coin 7 | 22 | 23 |
| Musical Coin 8 | 22 | 23 |
Open all Musical Coin markers on the Room & Target Index → · Full Musical Coins Finder for every level →
ABILITY · SUPER JUMP SLAM
How Super Jump Slam Overalls work
Super Jump Slam Overalls
Gray Chest reward in Castle of Illusions. It upgrades the permanent Ground Pound from Lead Overalls into a stronger Super Ground Pound that can break reinforced floor blocks.
Collecting it also unlocks later map variants: Desert Ruins V4, Sea Turtle Rocks V3, The Peaceful Village V4, and The West Crater V2.
Open Gray Chest map → · All ability unlocks → · Abilities catalog →
Get Lead Overalls first
Basic Ground Pound comes from Lead Overalls in W2 The Volcano’s Base. Super Jump Slam upgrades that power.
Gray Key → room 12
Hunt the Gray Key in the castle room family (0 / 10 / 20 / 21 / 24 / 26), then open the Gray Chest in room 12.
Break reinforced floors
Use Super Ground Pound on thicker floors that standard Ground Pound cannot crack, and revisit locked map variants.
MAP VARIANTS · DAY & NIGHT
When Castle of Illusions layout changes
E3 has four progression variants on both Day and Night. Variant 1 is available once the castle is revealed. Later variants open after you collect specific treasures elsewhere in the game:
| Variant | Requirements | Notes | Map |
|---|---|---|---|
| V1 | None (after castle is revealed) | Default first visit. Grab Super Jump Slam Overalls here. | Open Day map |
| V2 | Sun Medallion (Top) + Sun Medallion (Bottom) | Both medallion halves required for this layout change. | Open Day map |
| V3 | Super Grab Gloves (E6 Gray Chest) | Stronger grab power opens extra castle routes. | Open Day map |
| V4 | Castle Brick (W6 Green Chest) | Late-game layout for remaining E3 routes. | Open Day map |
FIRST VISIT ROUTE
What to do in Castle of Illusions on your first clear
Reveal E3
Confirm Lantern and Magical Flame are collected so the castle appears past The Stagnant Swamp, then enter E3.
Gray Key → Super Jump Slam
Prioritize the Gray Chest for Super Jump Slam Overalls, leave if you need the new smash power immediately, then return for Torch when Forest of Fear is next.
Revisit for 100%
Come back for Gold Magic, Rust Spray, Musical Coins, and remaining key routes after Sun Medallion, Super Grab Gloves, and Castle Brick open later variants.
FAQ
Castle of Illusions FAQ
How do you open Castle of Illusions in Wario Land 3?
Collect the Lantern and Magical Flame. They reveal Castle of Illusions (E3) on the East overworld beyond The Stagnant Swamp.
How do I open the Gray / Grey Chest in Castle of Illusions?
Find the matching Gray Key in the castle room family (rooms 0, 10, 20, 21, 24, or 26 depending on map state), carry it to the Gray Chest in room 12, and open it for Super Jump Slam Overalls.
What does Super Jump Slam / super jump do?
Super Jump Slam Overalls upgrade Ground Pound into Super Ground Pound so Wario can break reinforced floor blocks. They also unlock several late map variants outside E3.
What does the Torch in Castle of Illusions do?
The Red Chest holds the Torch. Collecting it burns forest vines, opens Forest of Fear, and reconnects the eastern route toward The Peaceful Village.
How many Musical Coins are in Castle of Illusions?
Eight—the same as every other level. Use the coin table above or the full Musical Coins Finder if you are missing one for 100% side goals.
Do I need every Castle of Illusions treasure on the first visit?
No. Prioritize Super Jump Slam Overalls. Return later for Torch, Gold Magic, Rust Spray, and Musical Coins as Sun Medallion, Super Grab Gloves, and Castle Brick unlock harder rooms.