Super Mario 2 Yoshi Island Walkthrough

If you earned perfect scores of 100 in every stage, Extra Stage 3 and Bonus Challenge 3 will become available to you! Regardless of score, you'll be treated to a cutscene on Yoshi's Island from the title screen and see Yoshi conquer the castle at World 3 before you're taken to the World 4 map screen.


  • Access Other Levels

Note: this glitch requires a controller that allows pressing both Left and Right on the D-Pad simultaneously.
During the introductory level of the game, grab a certain number of Coins, depending on where you want to go. 0 or 9 Coins brings you to Extra 1, 1-8 Coins brings you through to that level of World 1 (i.e. 5 Coins = World 1-5), 10 Coins to the Bonus game for World 1, 11 Coins to a glitched level, 12 Coins to the intro level, and then 13-15 Coins brings you to World 2-1, 2-2, and 2-3 respectively. (These values loop based on 16, so you can still do this at higher Coins if needed. For example, 37 will bring you to World 1-5, as 37 divided by 16 has a remainder of 5.) With this achieved, use Start and then Select to leave the level and return to the map. There, press Left and Right together, then an less than half a second after begin holding the A Button. The cursor will glitch up a little, but you will soon transition to the named destination level.
What this glitch will do is essentially make 1-2 into the level you've chosen. It is recommended to only do this with World 1-2 to 1-8 because of this. If you go any further, you won't be able to play normally. Upon resetting the game and reloading, you cannot play World 1-1 or any levels you've actually skipped, though the levels you've played will act normally.
  • Carry Big Eggs to Other Levels

When getting a Big Egg (as in World 2-7), you can carry it to another level. Go to the Goal Ring and past it to the right side of the screen. Aim the Big Egg straight up, launch it, then lick it with your tongue; repeat as necessary until the Big Egg is launched to to the right and about half off-screen. Then enter the Goal Ring. The next Yoshi to come will pick up the Egg, carrying it with the others and Mario to the next level. Note that the Big Egg's graphics will glitch up, but it'll retain its normal functions.
  • Coin-Based Level Warping

Note that this glitch requires a controller that allows pressing both Left and Right on the D-Pad simultaneously. Begin by collecting a certain number of coins and returning to the level selection screen. The amount varies upon the level you wish to warp to. 68 for example will bring you to the final level, but depending on the amount you can go to any level, including glitch levels. With this achieved, use Start and then Select to leave the level and return to the map. There, press Left and Right together, then an less than half a second after begin holding the A Button. The cursor will glitch up a little, but you will soon transition to the named destination level. Note that this glitch can affect level progression significantly and make it so certain levels are only accessible with further use of the glitch. Results can be variable and may require several tries for the desired result.
  • Duplicate Red Coins

In several levels in the game, there are Shy Guys which are flying in the air with a red sack beneath them. Normally, if you eat or kill the Shy Guy, it will drop the Red Coin. If it drops the Red Coin, but you don't pick it up and instead run off-screen, you can then return to where the Shy Guy appeared. The Red Coin will be there still, but that Shy Guy will come in holding yet another Red Coin.
  • Eating Baby Mario

You must have the +10 or +20 star item in your pause screen or it won't work. It works on any level that has a metamorphosis bubble, but it works best on level 5-5 (Goonie Rides!!), where I discovered it. In 5-5, reach the first middle ring, and then you will notice the metamorphosis helicopter bubble ahead. Don't touch it yet. Instead, walk to the edge of the cliff. You will see the white Goonies flying your way. Let one hit you and let baby Mario cry in the air. Now, before the timer runs out, run left until the helicopter bubble is at the right edge of the screen. Don't move from there. Baby Mario will float around the helicopter bubble. Let the timer reach zero. When the red Toadies come and begin carrying him away, lick baby Mario from them, and quickly touch the helicopter bubble while the timer is still 0. When you finish morphing, the Toadies will come back and try to take baby Mario with them, even though you're a helicopter (Don't touch the baby while they are trying to take him, or you will freeze the scroll of the screen!). Now, when all four Toadies are about to take off with baby Mario, immediately pause the game and activate a +10 or +20 stars item. The red Toadies will let go of baby Mario, but he will still be crying in his bubble (and you are a helicopter!). Now touch baby Mario as a helicopter. The bubble will pop and then baby Mario will be stuck in a tiny bubble that doesn't even close around him (If you dont touch him as a helicopter, theres a glitch when the helicopter runs out: youll get Mario back, but the timer wont countdown if you get hit, as long as you dont touch a helicopter bubble again). Now, you can do one of two things:
a) Wait until the helicopter power runs out. If that happens, you will be transformed back into Yoshi. But notice anything strange? Baby Mario is still in that tiny bubble, and he is off your back! Now this is the cool thing though. You can lick baby Mario and he will go into Yoshi's mouth! If you swallow him, he will turn into an egg that can't damage Goonies! If you spit him back out, he will still be in the tiny bubble and slide around until he falls off the stage. You can't even lick him back into your mouth!
b) Head to the Yoshi Block as a helicopter at the end of this part of the stage. Avoid the Goonies and Green Piranas, and hit the Yoshi Block. The baby will transport where you are, and you will transform back into Yoshi. But the funny thing is that once again, you have no Baby Mario on your back. And Mario's bubble will return to normal size, but he will start floating up infinitely! You will lose him unless you can lick him before he floats away. Now, you can swallow him again and turn him into an egg, but if you spit him out, he will float around in his bubble up and down and move horizontally (you'll see what I mean) and won't stop. If you happen to spit him at a winged cloud, he will activate it but Mario will explode in the process! You cannot lick Baby Mario back into your mouth if you spit him out either.
These are fun glitches to try but remember that you must have the +10 or +20 star item and must have a metamorphosis bubble in the course. I have succeeded in other courses with many Yoshi shapes. But let me warn you that if you pull off this glich, you cannot leave the course or beat it without pressing start and select. Oh, and you will have baby Mario on your back again if you do leave the course. Have fun pulling this one off, gamers!
  • Hidden Stars During Final Boss

During the final boss fight against King Baby Bowser, it is possible to get hidden stars that count toward the baby timer. In the second phase of the fight, hold up on the D-Pad before firing one of the big eggs. Instead of firing them in the background at Baby Bowser, you will shoot the egg upwards at enemies off screen and a star will drop from the sky. You can do this continuously to build up your baby timer, allowing you to more easily finish the level with thirty stars if you get hit during the final boss. | Submitted by HRBEK
  • Instantly Kill Naval Piranha

When you are in the hallway right before you reach the room of World 3's boss Naval Piranha, start to swim slowly into the room, until you are right in front of the column of falling water. You can just see the untransformed Naval Piranha, but you haven't gone far enough to trigger Kamek's appearance. There, jump straight up, and, before you fall, aim and shoot an egg at the Piranha. When the egg hits the Naval Piranha, Kamek will appear, scream 'OH MY!!!' and then flee, and the Piranha will be destroyed, without you having to battle it.
  • Life Underflow Glitch

This glitch must be done in the final stage of the game, World 6-8, and you must have 0 lives to be able to execute the underflow. Early in the stage, when you have four numbered doors to choose from, enter Door #1. There, go along the path to a ! Switch near a long lava pit. Here, you need to carefully angle your jump so that you will land in the lava and, in turn, leap onto the ! Switch. Landing on the lava initially will kill Yoshi; however, Yoshi will also leap up from the burn during his death animation. If he strikes the ! Switch in that time, he will be considered to be alive again, although one live has already been lost in most situations. However, if you execute this glitch such that you have zero extra lives per the pause menu, you'll find that you now have a whopping 999 lives due to the underflow.
  • Make Eggs yellow and red

It's best to have a full supply of green eggs for this trick. Find a place in a level where you can aim straight up without hitting anything else (ie: level 6-8 would be a good one, after you hit a door, but don't go in yet). Stock up on eggs if you don't have any, then aim straight up. Throw an egg and after it hits the celeing once, have Yoshi catch it with his tongue. It should stop bouncing and be a yellow egg (if it was green to begin with). Throw another egg, this time letting it hit the celeing twice, then catch it. It should have turned red. Doing this trick right will help you make your score better, as red eggs give 2 stars that can be used on the Baby Timer that appears when Mario falls off Yoshi's back.
  • Null-Egg Glitch

Note that improper execution of this glitch can and will lead to the game hanging. First, in World 2-2, find a Mouser. Let it grab one of Yoshi's eggs; while the Mouser goes off-screen, take back the egg. At this point, the 'egg' is counted as an empty slot, although you have it. Get a Skull-capped Mouser to enter the inventory by making it spawn on-screen, then complete the level as normal. Go to World 1-8 and proceed as normal to boss: before entering the boss door, have only one egg available. Attack Salvo on the other side of the door by using this egg and the smaller bodies that split off of Salvo when hit -- do not destroy any of them by jumping or ground-pounding them. After, go to any level: the 'door unlock' cutscene from the end of World #-8 levels will immediately play. Play through the glitched level without falling into lava or being eaten by Piranha Plants, and do not lose the Key. In this manner, you will cause the game to consider that the credits have rolled, as if you've finished the game. You can also experiment with this glitch to get certain other items in your inventory, such as a glitch pipe to World 1-1 that allows quick level completion.
  • Secret levels and bonus games in each world

To unlock a bonus level and one of the 6 bonus games (when you get a flower on a roullete on the end of the level), finish a world with a 100 on each level to unlock the level and bonus game. These levels are tough for beginners. Here are the bonus games unlocked in each world:
World 1: Flip Cards
World 2: Scratch 'n' Match
World 3: Drawing Lots
World 4: Match Cards
World 5: Roulette
World 6: Slot Machine
  • Shortcut to Mini-games

While at the level select screen, hold down SELECT and type: X X Y B A.
  • Title Screen Stars

To append stars next to the logo at the game's title screen, you must complete every single level in a given world: this includes the extra levels earned by getting 100 points on the other eight levels in the world. One star will appear for each world completed in such a manner, for a total of up to six stars at the title screen.
  • World 1-1 Warping: Skip World 1-4

In World 1-4, partway through there is a locked door next to a pipe. Enter the pipe. When you land, begin holding the button to aim an Egg, then walk backwards and hit the Hothead so that you're hurt. Go on the platform to the right without grabbing Baby Mario, then Flutter upwards towards the exit. Yuo should end up grabbing Mario while above the screen. You will glitch the game and warp to the top-left bit of World 1-1. Flutter Jump to the right as much as possible whilst falling (you'll die if you don't) and you'll fall on part of World 1-1. You can finish the level from there as you would 1-1, with the benefits of being able to gain extra Red Coins, Stars, and Flowers from the level; further, the score earned will be counted towards 1-4 and it will also count as you finishing 1-4!
  • World 1-1 Warping: Skip World 2-1

In World 2-1, partway through the level you need to go down a pipe with a red down-pointing arrow on it (you will see another similar pipe to the right of there, with an up arrow). Whilst standing on it, press Down and the Jump Button together. You will glitch the game and warp to the top-left bit of World 1-1. Flutter Jump to the right as much as possible whilst falling (you'll die if you don't) and you'll fall on part of World 1-1. You can finish the level from there as you would 1-1, with the benefits of being able to gain extra Red Coins, Stars, and Flowers from the level; further, the score earned will be counted towards 2-1 and it will also count as you finishing 2-1!
  • World 1-1 Warping: Skip World 3-1

In World 3-1, partway through, you'll reach a Middle-Ring. Nearby, you'll find a watermelon-seed-spitting monkey. Jump from his head to up and above the Middle-Ring; you'll get an extended jump boost. While doing floating above and to the right of the ring, you'll want to try to enter the hidden bonus area. You will glitch the game and warp to the top-left bit of World 1-1. Flutter Jump to the right as much as possible whilst falling (you'll die if you don't) and you'll fall on part of World 1-1. You can finish the level from there as you would 1-1, with the benefits of being able to gain extra Red Coins, Stars, and Flowers from the level; further, the score earned will be counted towards 3-1 and it will also count as you finishing 3-1!
  • World 1-1 Warping: Skip World 4-7

Partway through 4-7, you will be able to shoot down a springball that's hidden above the screen. (It is where the fish enemies fly leftward at you and there's an impassable wall to the left.) Shoot down the springball and use it to reach another. As you use this one and go to the next screen from the jump, hold Left. You will glitch the game and warp to the top-left bit of World 1-1. Flutter Jump to the right as much as possible whilst falling (you'll die if you don't) and you'll fall on part of World 1-1. You can finish the level from there as you would 1-1, with the benefits of being able to gain extra Red Coins, Stars, and Flowers from the level; further, the score earned will be counted towards 4-7 and it will also count as you finishing 4-7!


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Bonus game:
Hold Select and press X(2), Y, B, A on any stage select (map) screen. The bonus game will begin when Select is released.

999 lives:
Enter World 4-1 find the two long pipes that are hanging upside down. Kill the Piranha Plants, then swallow Shy Guys until accumulating six eggs. Grab a Koopa Troopa, and stand on the pipe that previously held the lower Piranha Plant. Spit out the shell between the two lower pipes. As the shell bounces back and forth, throw away an egg. Shy Guys will appear from the other pipe and will be hit by the shell until extra lives appear.

Perfect score:
Six stars will appear on the title screen if a perfect score is obtained.

Two player battle code:
Locate the level with a door that leads to a room with a chomping ball and chain, at one of the castles on the sixth part of the game. Enter the room, press Start, then select a power block. It should kill the enemy and create a new door. Enter the new door to get the cheat code for a two player battle game.

Bonus level and bonus game:
To earn a bonus game and bonus level, earn 100% in all levels in any world. There is a different bonus level and bonus game in each world. Try them repeatedly to earn a lot of different items.

World 1: Card Match
World 2: Scratch N' Match
World 3: Flip The Slots
World 4: Memory Match
World 5: Roulette
World 6: Slot Machine

Infinite Yoshi flight:
Jump and hold Jump, so that Yoshi floats for a few seconds. As soon as Yoshi begins to drop, release and press Jump again. Yoshi will keep flying as long as you keep releasing and pressing Jump in this manner.
Information in this section was contributed by 4I Falcon.

Alternate title screen:
Get a 100% game completion to have a night time version of the title screen.

Complete all level in a world (including the extra levels) to have a star will appear next to the game's logo at the title screen. One star (for a maximum of six) will appear for each world that is completed.

Hint: Restore health and lives with Bosses:
When fighting a Boss or main monster you can kill yourself and return with perfect health and all your lives. To do this you hold, every button except for Start on the controller for two to three seconds, then press Start. Note: You must have all your lives for this trick to work.

Hint: Extra life Koopa:
Press Y to pick up the first shell. Throw it at the Koopa and it will go on and hit all the other Koopas. The last Koopa is an extra life Koopa.

Hint: Easy Stars:
Enable the 'Bonus game' code. Choose the popping game and win. You will receive a 20+ star icon. Repeat this as many times as needed. You can also receive other items in the other bonus games.

Hint: Defeating Big Bowser:
When you defeat the mini-Bowser, it will turn big. Target the big egg at its head, then press A. Do this eight times quickly and he will be defeated.

Hint: Defeating Naval Piranha Plant:
When you arrive in the Boss room where that small plant is located, step on the first block on the platform, then shoot a egg at him. However, do not go further than the first block on the platform or Kamek will appear and turn that small plant to a huge monster.

Hint: Kill shooting flowers:
Stand besides a shooting flower until its smiling face pops out. When it does, quickly eat a yellow ball and spit it out again. Do this repeatedly until all of the balls are gone. When this is done, every time its head pops out, it should be empty and harmless.

Hint: World 1-7: Easy lives:
Pick up a Rollie-Pollie Guy with your tounge. Do not turn him into an egg or spit him out for anyone until you get to the pipe that spits out Shy-Guys. Once there, spit the Rollie-Pollie Guy out into a 1 (square) hole on the right of the pipe. Once placed, jump onto the platform above and to the right of it. Let the Shy-Guys jump out of the pipe and onto the Rollie-Pollie Guy. Points will accumulate and will eventually give you 1-Ups continually. After a few hours, you will have 999 lives.

Hint: World 1-7: Coins:
At the beginning of the level when you see the two flashing brown eggs, get them. Shoot the brown eggs at the two brown spike opponent next to the silver spike opponent and to get two red coins.

Hint: World 1-9: Easy lives:
Grab a Melon Bug (the bug that curls when you approach) and take him to the Shy-Guy Pipe (where the Shy Guys appear from). Look up and shoot the bug. If done correctly, the bug should fall in the tiny space on the right side of the pipe, between it and landscape. Stand on the elevated surface and make sure you have no eggs. The Shy Guys will pop out towards you, but hit the bug. You will keep getting extra lives until you have 100. Then, get a perfect completion on World 5 and you will get the roulette game. If you get the X3; you will get 300 lives.

Hint: World 2-3: Use Star through rest of level:
In World 2-3, What's Gusty Taste Like?, collect the Star and run as far as you can, killing the enemies. Go back and wait for the Star to come towards you. Once it bounces back in another area, collect it and run through the rest of the level, and more Stars will be created. At the end of the level, you can collect Coins and Stars from the brick below the last Star. If you do not want to stop, run back to the left and back to the right again. The Star will appear again.

Hint: World 3-1: Hidden area
There is a location in the water in World 3-1 where you can go beneath a land mass to access a hidden area, by jumping off of a giant spring arrow. If you curve to the side and go above the normal hidden entrance, you should enter an area where you will be falling towards nothing. Keep going right (stay in the air as long as possible) until you reach the edge. You will be teleported to World 1-1 (and gain credit toward World 3-1) where you can gain more red coins and hearts than the maximum. It will only go to the top, but it will be 10 times easier to perfect the level.

Hint: World 3-1: Warp to World 5:
On World 3-1, select any character and fall down the waterfall. There is a door at the bottom. Go inside and find the potion. Throw it near the vase and go inside. Enter the vase, which will warp you to World 5.

Hint: World 4-1: Easy lives:
Go up the first steep hill until you get to three pipes and a Koopa walking around. Two will have Piranha plants and one will be a Shy-Guy generator. Throw away an egg so Shy-Guys will start jumping out. Kill the two Piranha plants, eat the Koopa and stand on the pipe. Spit the Koopa shell towards the Shy-Guys. The shell will bounce between the two pipes, knocking out the Shy-Guys. As soon as ten Shy-Guys are knocked out, you will start getting a 1-Up for each consecutive Shy-Guy. The shell will keep bouncing around, killing the Shy-Guys that pop out. You can get up to 999 lives this way.

Hint: World 4-8: Defeating the monstrous Koopa:
When you see the Koopa turn into a giant Koopa, wait for him to pull himself up or quickly throw an egg on its head. Then, throw eggs on its head three times. This will send him to the ground. While he is on the ground, Ground Pound him before he recovers. Repeat this process three times to defeat it. Note: To obtain more eggs, jump onto his shell or on its head. Eggs will be spit out.

Hint: World 5-4: Free mini-games:
Go to a door on your left. Use a POW block or '?' and go to the door and get the secret code. This code will give you free mini-games when you go to the level selection screen.

Hint: World 6-3: Hidden area:
In the second area of World 6-3, jump and touch the left side of the first spinning log, then float to the right and move up against the wall.

Hint: Naval Piranha's Lair: Full stars:
After you go underground in the pipes with water in them, you will reach a place where you hit the arrows with eggs, and you can get the stuff above the water. One of the info blocks always gives you two stars whenever you hit it with an egg. Since there is an egg block near by, you can do this until you have 30 Stars.

Hint: Touch Fuzzy Get Dizzy: Unlimited lives:
Grab a Melon Bug (the creature that rolls up into a ball) and go to the pipe with Shy Guys jumping out of it. Spit the Melon Bug close to the pipe on the left-hand side. When Shy Guys jump out, after a while you will get a '1-Up' for each time a Shy Guy hits the Melon Bug when it is in its melon form.

Hint: Welcome To Cloud World: Followed by eggs:
In this level or any other that has a large fat creature with many following behind it, Ground Pound the large one and the baby ones will follow you as eggs. When you throw one, it will loop and come back to you.

Glitch: Yoshi does flips:
When you find an enemy that you cannot defeat by jumping on them, repeatedly Ground Pound them. It will look as if Yoshi is doing flips on the enemy. Note:You must do this very fast.

Glitch: World 11-1: Free roaming Poochy:
SwearIn World 1-11, 'Poochy Ain't Stupid', you can have Poochy free roaming without the scrolling course. At the start of the level, keep jumping on Bats without hitting the 'scrolling course barrier' until you get on top of the wall to the wall that is to the left of you at the start of the level. Once on top, jump and keep doing Yoshi's 'flutter' or 'floating' move until you reach what appears to be an island. Land on it. Then, jump off to the right, fluttering until you reach an island surrounded by lava. Poochy should see you and run over. You now can go through the entire course without the scrolling course freely. The only drawback is if you go under the 'island' (second wall), you will hit the 'scrolling course barrier', then must ride Poochy to the end of the course.