Super Mario World 2: Yoshi’s Island

Overview

Super Mario World 2: Yoshi’s Island is the first Mario adventure game to star Yoshi as the primary playable character. Designed as a prequel to all previous Mario games, it goes back to when Mario was a baby. The player controls Yoshi across six worlds as he attempts to reunite Baby Mario with his twin brother Baby Luigi — who has been kidnapped by the evil Magikoopa, Kamek.

The game is visually unlike anything before it on the SNES. Its unique crayon-drawn, hand-illustrated aesthetic — bright colours, painterly backgrounds, deliberately child-like artwork — was a radical departure from Super Mario World. This visual style, combined with Yoshi’s new egg-throwing mechanic and the transformations enabled by the Super FX2 chip, made it one of the most technically ambitious SNES titles ever produced.

Yoshi’s Island features six worlds each with eight levels, giving 48 regular stages plus secret levels and boss fights. Each level has a perfect score of 30 stars, which players earn by collecting red coins, flowers and keeping the star counter topped up. Achieving 100% completion requires perfect scores on every level.

Yoshi carries Baby Mario on his back throughout the adventure.

Story

The stork was carrying twin babies — Mario and Luigi — to their parents in the Mushroom Kingdom when Kamek, a powerful Magikoopa serving Baby Bowser, intercepts him. Kamek snatches one baby (Luigi) but the other (Mario) tumbles free and lands on Yoshi’s Island. A green Yoshi finds the baby and a cloud of stars reveals a message: carry Baby Mario safely through the island.

The Yoshis of the island pass Baby Mario from one to the next across six worlds, while Kamek sends his Toadies and enlists the island’s boss creatures to stop them. The journey ends at Baby Bowser’s castle, where Yoshi must defeat a gigantic Baby Bowser and finally reunite the brothers with the stork.

Kamek — the main antagonist

Gameplay

Yoshi’s Island is a 2D platform game in which the player controls Yoshi. Unlike previous Mario games, Baby Mario rides on Yoshi’s back rather than being player-controlled. If Yoshi is hit, Baby Mario floats away in a bubble crying, and a star counter counts down — if it reaches zero before Yoshi reclaims him, the player loses a life. Stars are collected throughout levels to keep the counter full.

Yoshi can swallow most enemies using his long tongue, transforming them into eggs. He carries up to six eggs and can aim and throw them with a targeting reticule. Eggs bounce off walls and surfaces and can hit multiple enemies or targets. Ground pounding allows Yoshi to smash through certain blocks and activate floor switches.

The game features a scoring system per level: collect 20 red coins, 5 flowers and keep the star counter at 30 to achieve a perfect score of 30 stars. Levels with perfect scores unlock secret stages. Each fourth and eighth level of every world features an enlarged boss fight against a creature empowered by Kamek’s magic.

A key feature is the metamorphosis system — certain bubbles transform Yoshi into vehicles: a Helicopter, Submarine, Mole Tank, Train or Car, each with unique abilities used to navigate specific sections of levels.

Worlds & levels

The game takes place on Yoshi’s Island — a much larger and more varied setting than its Super Mario World counterpart. Six worlds each contain eight levels, with every fourth and eighth level featuring a mid-boss and big boss respectively. All worlds have distinct biomes progressing from sunny grasslands to volcanic caverns.

The island setting — day and night:

Daytime

Night-time

World 1: Yoshi’s Island

Rolling green hills and grasslands. Introduces basic mechanics — egg throwing, flutter jumping and Poochy the dog.

World 2: The Cave

Underground caverns with lava floors, auto-scroll sections and the first underwater levels.

World 3: The Mountains

Steep mountain terrain with cloud platforms, athletic stages and slippery ice surfaces.

World 4: The Lake

Lakeside and jungle territory with numerous water sections, trees and vine-climbing stages.

World 5: The Valley

Twilight forest and ghost house territory. Darker atmosphere with more enemies and puzzle stages.

World 6: Bowser’s Castle

Volcanic cavernous wasteland approaching Bowser’s fortress. The hardest stages in the game leading to Baby Bowser.

Playable characters

Eight different Yoshi colours appear throughout the game, each one carrying Baby Mario through their respective world. All Yoshis play identically — colour is purely cosmetic. The game introduces Pink, Light Blue, Purple and Brown Yoshis alongside the four colours from Super Mario World:

GreenWorlds 1 & 2

PinkWorld 1

Light BlueWorld 2

YellowWorld 3

PurpleWorld 4

BrownWorld 4

RedWorld 5

BlueWorld 6

Each Yoshi carries Baby Mario safely to the next Yoshi at the end of their world. If Yoshi is hit, Baby Mario floats away in a bubble — Yoshi must recapture him before the star timer runs out.

Supporting characters

Baby Mario

Rides on Yoshi’s back throughout the adventure. When Yoshi takes damage, Baby Mario floats away in a bubble crying — a star timer counts down, and if it hits zero before Yoshi rescues him, the player loses a life. Baby Mario briefly becomes invincible and super-powered when he grabs a Super Star.

Baby Luigi

Mario’s twin brother, kidnapped by Kamek’s Toadies at the start of the game. Held captive in Baby Bowser’s castle, he is the motivation for the entire journey. The player rescues him in the finale.

The Stork

Was delivering the twin babies to the Mushroom Kingdom when Kamek intercepted him. He is captured and hung upside down at Baby Bowser’s castle. Rescuing him ends the game.

Kamek

A powerful Magikoopa — advisor and caretaker to Baby Bowser — who foresaw the future threat posed by the Mario brothers and ordered their capture. He appears at the start of each world and before every boss fight, using his magic to enlarge ordinary creatures into giant bosses.

Poochy

A friendly dog who appears in certain levels. He walks forward automatically, is impervious to all hazards, and can traverse spiky floors safely. Yoshi can ride him. An invaluable helper in lava-floor stages.

Roger the Potted Ghost

A friendly ghost in a flowerpot that appears as a helper in certain Ghost House levels, carrying Yoshi across gaps he cannot otherwise cross.

Enemies

Yoshi’s Island features one of the most imaginative enemy rosters of any Mario game — many new species debuted here and have remained series regulars. Most can be swallowed and turned into eggs, though some are immune.

Common enemies

GoombaClassic enemy

Shy GuyMasked; common

Big Shy GuyLarger variant

Koopa TroopaShell slides

Beach KoopaCoastline Koopa

BanditSteals star meter

Fly GuyOften carries 1-Up

SnifitShoots bullets

Cloud DropDrops from clouds

Piranha PlantPipe lurker

Cactus JackDesert cactus

SpinyCannot be stomped

Chomp RockPush into enemies

Lunge FishLeaps from water

Lunge FishLeaps from water

Flying & airborne enemies

LakituDrops Spinies

Aqua LakituUnderwater Lakitu

Baron von ZeppelinCarries items/enemies

Boo BalloonInflates to block path

Barney BubbleFloating bubble enemy

Blow HardPuffs at Yoshi

Ghost House & cave enemies

Big BooGhost House pursuer

Boo BlahLurks in Ghost Houses

SwooperBat; swoops down

Tap-TapIndestructible spiked ball

Jungle & nature enemies

WigglerRages when stomped

Blow HardPuffs projectiles

Hot LipsLava; spits fireballs

MildeSplits when stomped

GustyWind ghost

BumptyPenguin; slides on ice

Note: Yoshi’s Island contains over 80 unique enemy types. This is a representative selection of the most commonly encountered enemies.

Mid-bosses

Each world’s fourth level ends with a mid-boss fight. These are ordinary enemies transformed by Kamek’s magic — most are from earlier in that world, enlarged to monstrous scale.

Burt the BashfulWorld 1-4

An overalls-wearing creature that inflates when hit. Defeat him by hitting him enough times to pop his overalls completely.

Bigger BooWorld 2-4

A Giant Boo that pursues Yoshi around the room. Cannot be hit while facing Yoshi — trick him into turning away.

Prince FroggyWorld 3-4

A giant frog that swallows Yoshi whole. Fight takes place inside his stomach, defeating stomach enemies.

Marching MildeWorld 4-4

An enormous Milde that splits into smaller ones when stomped. Keep splitting until they disappear.

Sluggy the UnshavenWorld 5-4

A giant slug covered in spikes. Hit the soft underbelly with eggs while avoiding the spikes.

Tap-Tap the Red NoseWorld 6-4

Invulnerable to eggs and ground pounds — lure him to fall into the lava below.

Big bosses

The eighth level of each world ends with a big boss — a major creature empowered by Kamek’s magic. These are the most dramatic battles in the game.

Salvo the SlimeWorld 1

A giant slime that splits into smaller pieces each time it’s hit. Defeat all pieces to win.

Roger the Potted GhostWorld 2

A ghost that charges at Yoshi in a series of pots. Hit the pots to find the real Roger.

Naval PiranhaWorld 3

A giant Piranha Plant in water. Hit its navel (weak point) with eggs before it submerges.

Hookbill the KoopaWorld 4

An enormous Koopa Troopa. Ground pound its shell when it lands to flip it, then hit its belly.

Raphael the RavenWorld 5

A giant raven on a planetoid. Ground pound the small ravens into the big one to send it flying off the edge.

Baby BowserWorld 6 (phase 1)

Baby Bowser himself — ride Yoshi to dodge and pelt him with eggs until he calls Kamek.

Giant Baby BowserWorld 6 (finale)

Kamek transforms Baby Bowser into a screen-filling giant. Dodge his fists and pelt his face with eggs to defeat him and rescue Luigi.

Transformations, metamorphoses & power-ups

Yoshi’s Island introduced two types of transformation: Metamorphoses triggered by special bubbles that transform Yoshi into a vehicle, and other transformations triggered by power-ups in the environment.

Metamorphosis bubbles

Shooting a certain bubble transforms Yoshi into one of five vehicles for a limited time. Each form has unique controls and is used in specific stages to navigate areas Yoshi cannot otherwise reach:

Helicopter

Fly upward by holding the button; use the propeller to stay aloft. Used in vertical-scrolling stages.

Mole Tank

Shoot in any direction; burrow through soft earth. The only form that can dig through terrain.

Submarine

Navigate underwater freely in all directions; fire torpedoes at enemies.

Train

Run along a fixed rail track; stomp enemies below or shoot eggs left and right.

Car

Accelerate along the ground; jump to avoid obstacles. The fastest-moving form.

Other transformations

Superstar Mario

Baby Mario grabs a Super Star and becomes temporarily invincible and powerful, running independently and defeating all enemies on contact.

Ski Yoshi

Yoshi puts on skis and races down snowy slopes at high speed, collecting stars and avoiding obstacles.

Items

Items found throughout Yoshi’s Island, collected from blocks, enemies and winged clouds:

	Item	Description
	1-Up Mushroom	Grants an extra life. Often carried by Fly Guys or hidden in winged clouds.
	Big Key	Held by each world’s big boss after defeat. Unlocks the gate to the next world.
	Blue Watermelon	Gives Yoshi the ability to spit ice — freezing enemies into blocks of ice that can be used as platforms or thrown.
	Yellow Watermelon	Gives Yoshi the ability to spit seeds at high speed, defeating most enemies.
	Red Watermelon	Gives Yoshi the ability to spit fireballs that bounce across the ground.
	Coin	Collect 100 for an extra life. Found throughout levels as both visible and hidden coins.
	Red Coin	Count toward the level’s 20 red coin total required for a perfect score. Usually hidden.
	Flashing Egg	Special egg that releases a red coin on impact with an enemy rather than defeating it.
	Giant Egg	A huge egg that creates a shockwave on landing, defeating all on-screen enemies simultaneously.
	Green Shell	Cannot be swallowed — can be held and thrown, bouncing off walls to hit multiple enemies.
	Star	Fills the star counter by 10. Keeping the counter full is crucial — it’s your buffer when hit.
	Winged Cloud	Hit with an egg to release hidden items, stars, or trigger level events.
	Flower	One of five collectibles per level needed for a perfect 30-star score.

Bonus challenges

Bonus Challenges are triggered when the Goal Ring at the end of a level stops on a flower. Collecting more flowers during a level increases the chance of triggering one. Each challenge rewards stars, lives or items:

Flip Cards

Flip cards to find matching pairs. Each successful match fills the star counter.

Scratch & Match

Scratch panels to reveal symbols — match three to win a prize.

Drawing Lots

Draw a lot from the selection to reveal your star reward.

Match Cards

Turn over cards against the clock to find matching pairs.

Roulette

A spinning wheel that stops on a star value reward.

Slot Machine

Pull the handle — match three symbols for a big star bonus.

Nintendo Power coverage

Nintendo Power gave Yoshi’s Island extensive coverage across two issues — a preview ahead of release and a full multi-page strategy guide:

A Journey Through Yoshi’s Island

A Journey Through Yoshi’s Island was a promotional VHS tape released by Nintendo of America in 1995 in partnership with Nintendo Power magazine. The video was sent to subscribers and used to promote the then-upcoming Super Mario World 2: Yoshi’s Island ahead of its October 1995 release. It contained gameplay footage, developer commentary and a walkthrough of early worlds — a marketing format Nintendo used for several major SNES releases.

The video is a fascinating piece of Nintendo history — pre-release promotional material that gives a glimpse of how Nintendo marketed games before the internet era. Nintendo Power subscribers would have received this alongside their magazine as an exclusive preview of the game.

The full promotional video as preserved on YouTube. Originally distributed to Nintendo Power subscribers in 1995 ahead of the game’s North American release on October 4th.

Reception & legacy

Yoshi’s Island received widespread critical acclaim on release. Its combination of innovative gameplay, technically impressive use of the Super FX2 chip, and distinctive visual style set it apart from every other SNES game. The game maintained a 90%+ aggregate score across publications.

Nintendo Power’s 100th issue ranked it 18th in their all-time top 100 — a strong placing. GameInformer’s all-time top 200 placed it 185th — relatively modest, though the game remains technically one of the most advanced SNES titles ever produced thanks to the Super FX2 chip enabling smooth scaling, rotation and the game’s enormous boss sprites.

The game’s legacy is enormous. It spawned an entire Yoshi sub-franchise: Yoshi’s Story (N64), Yoshi’s Island DS, Yoshi’s New Island (3DS), Yoshi’s Woolly World (Wii U) and Yoshi’s Crafted World (Switch). Its crayon art aesthetic and egg-throwing mechanic have remained consistent series DNA for 30 years. It was included in the SNES Classic Edition and is available on Nintendo Switch Online.

Development

Yoshi’s Island was directed by Takashi Tezuka and produced by Shigeru Miyamoto — the same team behind Super Mario Bros. 3 and Super Mario World. The game was developed as a simultaneous sequel to Super Mario World and a technological showcase for the new Super FX2 chip, a more powerful successor to the original Super FX chip used in Star Fox.

The distinctive crayon-drawn visual style was a deliberate creative choice to differentiate the game from Super Mario World and previous SNES titles. Early demonstrations of the game’s art style were reportedly met with scepticism — some felt it looked too simple — but the team insisted on the aesthetic, which has since become the game’s most beloved characteristic.

The Super FX2 chip enabled effects impossible on standard SNES hardware: smooth sprite scaling for the game’s giant bosses (which fill much of the screen), Mode 7-style rotation effects, and large numbers of sprites without slowdown.

Trivia & interesting facts

• Known in Japan as Super Mario: Yoshi’s Island — the “World 2” subtitle was used in Western markets
• This game was actually designed as a prequel to all other Mario games — showing Mario’s first adventure as a baby
• Powered by the Super FX2 chip — enabling smooth scaling, rotation and the game’s enormous bosses, impossible on standard SNES hardware
• The “?” blocks from Super Mario World do not appear in this game — replaced by Winged Clouds
• Features the return of POW Blocks, unseen since Super Mario Bros. 2
• Yoshi controls the entire game — Mario is a passenger for virtually the whole adventure
• GameInformer Top 200 rated it 185th — despite it being one of the most technically advanced SNES games ever made
• Nintendo Power’s 100th issue Top 100 placed it a more respectable 18th
• The fish enemy called Loch Nestor is a reference to Loch Ness and the legendary Scottish Loch Ness Monster
• A Japanese comic series called Super Mario-Kun featured a special edition based on the game — where adult Mario, Luigi and Bowser travel back in time to help Yoshi
• Brown Yoshi is exclusive to this game — no other title has featured a brown Yoshi
• The game’s soundtrack was composed by Koji Kondo, whose distinctive lullaby-style compositions perfectly match the game’s infant-world aesthetic
• Achieving a perfect score (30 stars) on every level unlocks secret stages and is required for true 100% completion
• A promotional VHS tape — A Journey Through Yoshi’s Island — was distributed to Nintendo Power subscribers ahead of the October 1995 release

Reference & downloads