|Yoshi: Island Adventure|
|1 player, 2-4 player Co-op|
One day at Yoshi's Island, the Yoshis are playing a game of tag when Yoshi finds a glowing rock in a bush. The Yoshis find out from Toad that the rock is a magical Eggstone. The Eggstone can lead the finders to great fortune, or great disaster. Unfortunately for the Yoshis, distaster strikes, as Bowser comes on his airship, letting Bullet Bills and Bob-ombs wreak havoc. Yoshi tries to defend the Yoshis, but Bowser throws a fireball at him and Yoshi faints by a nearby shrub. Bowser kidnaps the rest of the Yoshis, and leaves Yoshi's Island behind, in a bad condition. Yoshi wakes up to see Toad showing him a Star Block he found. The block reveals a Warp Pipe. Yoshi and Toad go into the pipe and find a whole bunch of levels. Yoshi must go through each level to find each Block and save the Yoshis!
|102px||Yoshi||The main character of the adventure is ready to save his friends!|
Yoshi's right-hand man, Toad helps Yoshi throughout his adventure and can be playable at the end of the game.
Yellow Yoshi is the Yoshi captured in World 1. To save him, beat Kamek.
|Pink Yoshi||Pink Yoshi is the Yoshi captured in World 2. To save her, beat Boshi.|
|116px||Black Yoshi||Black Yoshi is the Yoshi captured in World 3. To save him, beat Boss Sumo Bro.|
|152px||Red Yoshi||Red Yoshi is the Yoshi captured in World 4. To save him, beat Dark Bones.|
|148px||Cyan Yoshi||Cyan Yoshi is the Yoshi captured in World 5. To save him, beat King Boo.|
|Blue Yoshi||Blue Yoshi is the Yoshi captured in World 6. To save him, beat Petey Piranha.|
|142px||White Yoshi||White Yoshi is the final Yoshi to save in World 7. To save him, beat Bowser Jr.|
|Bowser||Bowser is the main villain of the game and is fought twice in World 8.|
|Bowser Jr.||Bowser Jr. is Bowser's son and is fought once in World 7 and twice in World 8.|
|148px||Kamek||Kamek is one of Bowser's best henchmen and is fought once in World 1 and twice in World 8.|
The gameplay is much like Super Mario World 2: Yoshi's Island for the SNES. The graphics have been enhanced to fit the 3DS's 3D graphic style.
|Star Block||A Star Block is found at the end of each level. Once Yoshi collects all the Star Blocks in a world, a new pipe will open up, leading Yoshi to the next world.|
|148px||Star Coin||There are three Star Coins in each level. They can be spent at Item Shops to buy items, and if all Star Coins are collected at the end of the game, a bonus world will open.|
|Coin||Coins are spread out across every level. If Yoshi collects 100 coins, he will get an extra life.|
|Kamek||Kamek is the boss of World 1, and when you defeat him, Yoshi saves Yellow Yoshi.|
|Boshi||Boshi is the boss of World 2, and when you defeat him, Yoshi saves Pink Yoshi.|
|Boss Sumo Bro.||Boss Sumo Bro. is the boss of World 3, and when you defeat him, Yoshi saves Black Yoshi.|
|Dark Bones||Dark Bones is the boss of World 4, and when you defeat him, Yoshi saves Red Yoshi.|
|King Boo||King Boo is the boss of World 5, and when you defeat him, Yoshi saves Cyan Yoshi.|
|Petey Piranha||Petey is the boss of World 6, and when you defeat him, Yoshi saves Blue Yoshi.|
|Bowser Jr.||Bowser Jr. is the boss of World 7, and when you defeat him, Yoshi saves White Yoshi.|
|Kamek (2nd Time)||Kamek is fought again as the first boss of World 8.|
|Bowser Jr. (2nd Time)||Bowser Jr. is fought again as the second boss of World 8.|
|Bowser||Bowser is the third boss of World 8.|
|Giant Bowser||Giant Bowser is the fourth and final boss of World 8.|
|Dry Bowser Jr.||Dry Bowser Jr. is the first boss of World 9.|
|Dry Bowser||Dry Bowser is the second boss of World 9.|
The game also features Local Multiplayer, where up to three more friends nearby can cooperate with you to finish levels. The host of the room must play as (green) Yoshi, but the three guests can play as any Yoshi or Toad.
The game also has Online Multiplayer, but it is much different from Local Multiplayer. Instead, you get to choose the color of your Yoshi (or pick Toad), and whoever collects five Eggstones first, wins. You can also steal Eggstones from other players who have them by attacking with items or eggs. If you win a match, you'll receive special points called "EP." (Egg Points.) The max amount of EP you can get is 99999 EP.
- If you beat Dry Bowser, you can play as Toad.
- If you collect all the Star Coins in World 9, you can play as the multi-colored Yoshis.
- If you reach 99999 EP, you can play as a Golden Toad.
- If you win Online Multiplayer ten times in a row with 99999 EP, you can play as a Golden Yoshi.
- Totaka's song can be heard on the File Select screen if you wait 2 minutes and 36 seconds.