Hang Tongue!

Hang Tongue! is the last level of World 1. It is unlocked when all 40 Smiley Flowers are collected in the 8 previous levels.

Layout
The level starts on a sandy, grassy little platform with a Winged Cloud. After popping it, geysers pop up. Then, more geysers pop up afterwards with eight Shy Guys and a Piranha Plant. Shortly after there is a pipe with Shy Guys coming out of it and some more geysers. The rest of the level is mostly geysers, with some platforms and a few more Shy Guy pipes. There are no checkpoints.

Enemies

 * Shy Guys
 * Piranha Plantss
 * Hook Guys

Smiley Flowers

 * Smiley Flower #1: The first Smiley Flower is found just after the start of the level after popping the Winged Cloud.
 * Smiley Flower #2: Under the Shy Guy pipe, there is a hidden Winged Cloud. Pop it to get the second Smiley Flower.
 * Smiley Flower #3: Between the two geysers with Hook Guys and Piranha Plants on them, pop a hidden Winged Cloud to make the third Smiley Flower.
 * Smiley Flower #4: On the geyser with lots of enemies, the fourth Smiley Flower is underneath it. Jump down and collect it, then use flutter jumps and the geyser to make it back up.
 * Smiley Flower #5: In the area with lots of Shy Guy pipes, throw a Yarn Ball at the missing pipe to make it appear. To get inside, jump off a Shy Guy and flutter jump inside. Inside there is a cloud, a Present Box and some Shy Guys. Don't unravel the Present Box, use it to reveal a hidden Winged Cloud, then pop it.

Wonder Wool

 * Wonder Wool #1: On the first geyser with enemies, there is three Winged Clouds above. The middle one holds the Wonder Wool.
 * Wonder Wool #2: Above the third small geyser after the pipe, pop the hidden Winged Cloud to get the second Wonder Wool.
 * Wonder Wool #3: Pop a Winged Cloud just after the third Smiley Flower, between two geysers.
 * Wonder Wool #4: On the geyser with a single Piranha Plant, kill it and grab the the fourth Wonder Wool.
 * Wonder Wool #5: In the area with lots of Shy Guy pipes, the Wonder Wool is just under the second one. Either throw a Yarn Ball or grab it while there are no Shy Guys.

Collecting all five Wonder Wools in this level unlocks Wii U Yoshi.