2-Secret: Mystery of the Castle?

Map

Level available only in the Game Boy Advance version.
You can drop the Zeus Guy at ★1 (on top of the soft rock in Area 4) and perform a high jump using it to reach the door that leads to Area 5.
Breaking the Cracked Block on the ceiling in Area 5 will cause the Spring Ball to fall, allowing you to reach the top of the ceiling. To the right, you can enter Area 6 through D, and to the left, you can enter Area 7 through the door at E.
The Flower at ★2 (in Area 6) will appear after the two Dizzy Dandies in the room disappear.
By riding the Muddy Buddy at ★3 (in the center part of Area 8), you can move over the spike and collect the key. Afterwards, carry the Spinning Wheel from the bottom-right to the top and head towards the Locked Door.
The Spinning Wheel in Area 9 can change its direction by being hit with an egg. Additionally, while riding the Spinning Wheel, you can also change its direction by bouncing an egg off the wall and hitting it.

Stars

Area 1 ×5

Inside the hidden Winged Cloud above the spike in the later part ×5

Area 2 ×20

Inside the hidden Winged Cloud in the narrow gap right above the entrance ×5
Inside the hidden Winged Cloud at the center ×5
Pass through the Middle Ring at the center ×10

Area 5 ×5

Inside the hidden Winged Cloud in the central narrow gap (break the Cracked Block on the ceiling and move left on the ceiling) ×5

Area 7 ×5

Inside the hidden Winged Cloud at the top-left ×5

Area 8 ×10

Pass through the Middle Ring right after the entrance ×10

Area 9 ×10

Pass through the Middle Ring right after the entrance ×10

Area 11 ×5

Inside the hidden Winged Cloud above the pipe ×5

Red Conis

Area 1 ×2

In the later part ×2

Area 2 ×2

While ascending in the left part ×2

Area 4 ×2

At the top-right of the door after jumping using the Zeus Guy above the soft rock ×2

Area 7 ×2

Above the door ×2

Area 8 ×4

At the top-right ×1
Carried by the Coin Bandit on the narrow platform at the middle-right ×1
Between the two narrow platforms, after ascending with the Spinning Wheel from the bottom-right ×2

Area 9 ×2

At the center, after moving with the Spinning Wheel ×2

Area 10 ×5

While moving forward on the ! Blocks after activating the switch ×5

Area 11 ×1

Carried by the Fly Guy that appears just before the goal ×1

Flowers

Area 3 ×1

At the bottom-left

Area 6 ×1

Appears after the two Dizzy Dandies in the room disappear

Area 8 ×1

Collect using the Koopa Troopa's shell at the highest point after ascending with the Flatbed Ferry on the left

Area 9 ×1

At the left space of the hole while descending from the top-right

Area 10 ×1

While moving forward on the ! Blocks after activating the switch

Enemies

Name	Defeat								Description
Name	Eat	Stomp	Pound the Ground	Egg	Green Water -melon	Red Water -melon	Blue Water -melon	Trans -form	Description
Fly Guy	○	○	○	○	○	×	×	○	Flying in the sky, carrying a Red Coin, a Winged Cloud, etc.
Lava Drop	×	×	×	×	×	×	×	○	Hovers in the air, moving vertically or horizontally. It cannot be defeated by normal attacks.
Fang	○	○	○	○	★	○	○	○	Flies through the sky, swaying gently.
Bandit	×	△	○	△	△	×	×	○	Kidnaps the baby. It can be defeated by pounding the ground once, stomping on it three times, or hitting it with eggs or a Green Watermelon six times. If you use eggs or a Green Watermelon, the last three hits will grant you a 1UP.
Coin Bandit	×	△	○	△	△	×	×	○	Carrying the Red Coin. Other than that, it behaves like a normal Bandit.
Koopa Troopa	△	△	○	△	△	○	○	○	After you stomp on it, it loses its shell and becomes a Beach Koopa. If you pound the ground, it can be defeated in one hit, even when it still has its shell.
Green Glove	×	△	○	×	×	○	○	○	Catches and throws back the egg you throw. It can be defeated by stomping on it three times or by pounding the ground.
Zeus Guy	×	×	×	×	×	○	○	○	Attacks by shooting an energy ball. It can only be defeated with Special Items.
Dizzy Dandy	×	×	×	×	×	×	○	○	Falls and rolls towards you when you get close or hit it with an egg. Disappears when it hits a wall.
Grim Leecher	○	×	×	○	○	○	○	○	Moves through the air and approaches. If you're possessed, the left and right keys get reversed.
Muddy Buddy	×	×	×	×	×	○	○	○	You can stick it to the bottom of your foot and walk on the spikes.
Green Toady	○	○	○	○	★	×	×	○	Slowly approaches you and kidnaps the baby.

○: Can be defeated
△: Can be defeated under certain conditions (e.g., multiple attacks, attacking during a specific state, etc.)
×: Cannot be defeated
★: Transforms into a Star (only in the Green Watermelon column)
The "Transform" column indicates whether the enemy can be defeated by using the Special Item "Anywhere POW", "Winged Cloud Maker", or by passing through the Middle Ring.