New Super Luigi U: Acorn Plains- Castle -- Lemmy's Lights-Out Castle

The castle is dark, but has overhead lights that swing. Some of them move with the pendulums in the castle. The first Star Coin is over a high pendulum that swings over another. There's a Red Coin Ring that makes Red Coins appear over the pendulums swinging over the gap. Collecting them all will give you a 1-up or an Acorn Mushroom. You'll need it to reach the second Star Coin, which is below a pendulum. Drop down to get it, then boost to safety. Over solid ground are a set of three brick blocks. The middle one contains a P-Switch. This will turn the coins into brick blocks so you can safely travel over the Nippers. Drop down into the gap between two sets of Nippers for a pipe. This leads to the third Star Coin, over a pendulum. The boss door is ahead. There's an 8-bit Luigi on the right wall. Going through the boss door will add 100 seconds to your time. Launch from the cannon to the Airship. Lemmy stands on a bouncy ball and tosses bombs. Stomp him three times to defeat him. You'll open the path to Layer-Cake Desert. You'll also get a message saying that you've collected all the Star Coins, which should mean something good. Save your game.

New Super Luigi U: Acorn Plains-5 -- Piranha Gardens

Aside from Piranha Plants, there are Hammer Bros in this level. The first Star Coin is under the ledge with the Red Coin Ring. The second Star Coin is near the second Hammer Bro. There's a 1-up in the second brick block from the left on the top level of brick blocks where the second Hammer Bro is. Keep going and you'll see a giant Piranha Plant on the rock above. Enter the hidden area from the left side of the rock for the third Star Coin. Keep going to reach the flag.

New Super Luigi U: Acorn Plains- 4 -- Piranha Heights

Before entering the level, have Pink Baby Yoshi follow you. This level has pipes and moving mushroom platforms with Piranha Plants. The first Star Coin is above and to the right of the first set of pipes. To the right is a long platform above a mushroom. You'll find an Acorn Mushroom over the mushroom. The second Star Coin is above the second set of pipes. There will be two pipes near the top that have coins between them. Fly between those pipes to reach a pipe to an 8-bit Luigi and the third Star Coin. The pipe on the right will take you to the flagpole.

New Super Luigi U: Acorn Plains-3 -- Rolling Yoshi Hills

There are rolling hills here, which affect your speed. Monty Moles will pop out of the rocks, so keep an eye out for them. Throw a Koopa shell to the right, under a ledge, to get the first Star Coin. Nearby, you'll find a couple of item blocks, one with a Yoshi in it. To the right are hidden alcoves with coins. There's a low platform with lots of Piranha Plants. Use a shell on the other side of the gap to clear them out so you can get the second Star Coin. Up ahead are a couple of POW Blocks so you can get the coins in the sky. The third Star Coin is just in front of the flagpole. Use Yoshi or a POW Block to get it.

New Super Luigi U: Acorn Plains- Fort -- Flame-Gear Tower

This fort features gears and jet engines. Go over the first gear, avoiding the engines, then when the flames coming down on the right side stop, jump for the first Star Coin, then wall jump to safety. There are flames below the Star Coin. Just above it are a cluster of four engines spewing flames to the left. The second Star Coin is in the flames, so time your jump to get it. Keep climbing up and you'll see a Dry Bones on the right side. There are two engines above it. Between them are two levels of invisible blocks. This will allow you to reach the third Star Coin between the flames. At the top, there are a lot of Dry Bones by the boss door. Going through the boss door will give you 100 extra seconds so you can defeat the boss. Boom Boom is the boss again. Stomp him three times to win. After you win, you can save the game. The path ahead splits to Acorn Plains-3 and -4.

New Super Luigi U: Acorn Plains- Cheep-Cheep -- Cheep Chomp Chase

This water level has a lot of pipes. There is an invisible block over the red pipe with a Starman. Get it and go through the red pipe. There are lots of Cheep-Cheep as well as Big Bertha, the man-eating fish. Swim to the left, between the pipes, for the first Star Coin. The big item block below has another Starman. There's a Red Coin Ring between some pipes. Follow the coins, then swim up, over where the last Red Coin is and the second Star Coin will drop down from the gap in the pipes. Swim up through the gap to reach a new area with the third Star Coin. Keep going to the right, over the pipes and you'll see some rotating pipes. This will take you to the flagpole. This will open the path to Soda Jungle-1.

New Super Luigi U: Acorn Plains-2 -- Crooked Cavern

It's time to go underground. Drop down to the level of the Piranha Plants and walk to the left past them. You'll find a hidden area with the first Star Coin. Go through the middle pipe where there's moving crystal. Wall jump between the two left pipes to find a hidden block with a Starman. Go to the right and wait so you can safely jump to the next crystal. You'll see a couple of Koopas. Stomp one and pick up it's shell and throw it into the brick blocks to get the second Star Coin. Walk right, then drop down to a lower crystal when the coins between the crystals are visible. This way, you'll land on the brick blocks below. Jump onto the higher brick blocks, then go right, where you'll find some Koopas and Piranha Plants. To the right is a pipe with an arrow. This will take you to the flagpole. There's a hidden 8-bit Luigi in the brick block stairs. This will open the path to Acorn Plains- Fort.

Get an Acorn Mushroom to get the third Star Coin. You'll have to pick it up elsewhere; you can't find them in this level. Jump from the platform below the pipe to the flagpole and glide to the right. The third Star Coin is here. A little to the left of the third Star Coin are some hidden brick blocks in the ground. Pound them to drop down, then walk to the right, where there's a yellow pipe to the red goal. This opens the path to Acorn Plains- Cheep Cheep.