1 Iggy's Castle

Level
#1 Iggy's Castle
Mario climbing a fence to progress through the level
Level code	1-Castle
World	Yoshi's Island
Game	Super Mario World
Time limit	300 seconds
Boss	Iggy Koopa
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“Mario has defeated the demented Iggy Koopa in castle #1 and rescued Yoshi's friend who is still trapped in an egg. Together, they now travel to Donut Land.”

—In-game text, Super Mario World

#1 Iggy's Castle is the first castle in the game Super Mario World. It introduces fences that can be climbed as well as lava, which kills Mario or Luigi instantly upon being touched. As the name suggests, Iggy Koopa is fought here.

Overview

The castle consists of three rooms, one with climbable fences, one with a moving screen, and the boss room. The player has 300 seconds on the Timer to complete the level. This level contains no Dragon Coins in the original, but in the remake it has five.

The first room of the first castle is covered in fences, which can be climbed on with . The fence is teeming with Climbing Koopas that also climb on the fence. Climbing above and then onto these Koopas cause a chain in points, so defeating these Koopas can result in 1-Ups; however, if the player punches the Koopas off, the points do not chain. This gate spans above a lava-covered ground, where Lava Bubbles jump from. There are also Revolving Doors that the player can hit to switch sides. There is a Message Block at the start that gives information on how to use the fences, a Switch Block in the middle that turns coins to Empty Blocks as well as a ? Block that contains a Fire Flower, and a Message Block at the end that tells the player one of Yoshi's friends is trapped in the castle.

The second room in the castle features a moving screen with a giant wooden Pillar smashing onto the ground. Being hit by one of the Pillars causes damage. Stretch Blocks help the player cross a gap near the end. Entering the red door at the end of the room leads to the boss.

Boss battle

The fight against Iggy Koopa

Main article: Iggy Koopa

After Mario enters the big red door at the end of the level leading to the boss fight, he lands on a platform floating in lava with Iggy on it. Iggy attacks by ducking his head into his shell and tossing balls with stars on them (similar to the ones Lemmy balances on in Super Mario Bros. 3), which damage Mario if he touches them, while the platform tilts left and right. To defeat him, Mario needs to jump on or throw fireballs at Iggy to push him off the platform. Once Iggy is defeated, a cutscene is shown afterward in which Mario blows up the castle, rescuing one of Yoshi's friends and unlocking the next world, Donut Plains.

Enemies

Sprite	Name	Count
	Climbing Koopa (green)	13
	Climbing Koopa (red)	4
	Lava Bubble	1
	Pillar	indefinite
	Iggy Koopa	1 (boss)

Gallery

• 

  The second room in #1 Iggy's Castle

• 

  Iggy's battle in Super Mario World: Super Mario Advance 2

• 

  The final screen after defeating Iggy, calling Donut Plains "Donut Land"

Names in other languages

Language	Name	Meaning
Japanese	ヨースターとうのしろ Yōsutā-tō no shiro	Yoster Island's Castle
French	1 Chateau d'Iggy || 1 Iggy's castle
German	1. Iggys Festung	1. Iggy's Fortress
Italian	Castello dell'Isola Yoshi	Yoshi Island's Castle
Spanish	Castillo 1º. Iggy	1st Castle. Iggy

Trivia

• Besides Bowser's Castle, #1 Iggy's Castle is the only castle that needs to be completed in order to finish the game.
• In the SNES version of Super Mario World, Iggy is referred to as "demented" in the end cutscene, while he is referred to as "crazed" in the GBA port.