Super Mario World/Yoshi's Island 2

Yoshi's Island 2 is the second level on Yoshi's Island.

Walkthrough

 * At the beginning, an empty shell is lying on the ground. Grab it, jump onto the ledge and kick it forward into the group of marching Koopa Troopas. If the shell hits all of them, you'll get a 1-Up.
 * When you see two ? blocks, jump at the right one to find Yoshi. Jump on him to continue the adventure together. Try to eat all the berries on the way to get a free mushroom after the 10th one.
 * After the two yellow pipes, the middle out of the three ? blocks contains another Yoshi if you lost him earlier. Meanwhile, continue forward but watch the Monty Moles which jump out onto the ground.
 * A minor point: if you activated the yellow blocks, the single pit in this level will be closed. You'll also be able to get a mushroom from the yellow block in the air, as well as the one right at the beginning.
 * After the pink berry, go down the short pipe to get to the bonus area.
 * At the end, a P-Switch is enclosed in turn blocks. Jump at them from below to cause the P-Switch to fall down, then step on it. This will cause the coins in front of you to turn into blocks, giving you a try to touch the goal tape at the top. Otherwise, just go forward and touch the goal tape the normal way.

Bonus area

 * There are multiple floating blocks up high. Most of them have coins, but one contains a 1-up mushroom. You cannot reach the blocks by jumping, but you can use the blue blocks on the ground and kick them up against the floating blocks.
 * If you came here with Yoshi, you can also just jump off Yoshi in mid-air. This will take you high enough to touch the blocks.
 * Once you're done, exit using the ground pipe. You'll appear at the silver pipe just before the goal tape.

Dragon Coin locations
The five Dragon Coins in this level are located as follows:
 * 1) After the first message block, hovering above a red shell. It is accompanied by a few coins.
 * 2) Just a bit behind the first Dragon Coin, above a green shell.
 * 3) Behind the first Chargin' Chuck. Jump from the high ledge to reach it.
 * 4) On top of a cloud platform. To reach it, go to where the first Monty Moles are and look up to see two turn blocks. Hit the right one from below to reveal a vine, climb it up to get to the cloud platform where the Dragon Coin is.
 * 5) Just before the single pit. Fall down from the cloud platform the fourth Dragon Coin was on to land right at its place.