Planet of Lana 2 Chapter 3 Walkthrough: All Puzzles and Secrets

Chapter 3, The Cure, is the longest chapter in Planet of Lana 2: Children of the Leaf by a considerable margin. Lana needs two ingredients to save her sister, which sends her through a snow-battered mountain mine and then deep into a tropical ocean facility. The puzzle variety here is the best the game has to offer: wind timing, fuse chains, mining robots, underwater stealth, and a boat with a magnet. This guide walks through every single obstacle in order, including all 4 Secret Hologram locations hidden along the way.

How to get through the mountain wind sections

The chapter opens in a frozen mountain environment. After running forward and climbing the blue ice wall, the path splits. Go right and head outside, then drop down to find a chest containing Secret Hologram #2. Use Mui's special ability to open it. Climb back up and head left to reach the exposed ridge where wind becomes a hazard.

The wind knocks Lana off any open surface when it blows. The solution is simple once you see it: wait for a calm window, sprint across the gap, and crouch behind the rock on the other side. The rock blocks the wind entirely, so you can wait there safely. Repeat this pattern of dashing and sheltering across the next few gaps until you reach the wall. The wall's lower section is protected by another rock, so you can cling to it even during gusts.

How to solve the fuse puzzles

The fuse mechanic is introduced early and used repeatedly throughout the mountain section. Here's how it works: Mui can take control of the small white creatures scattered around each room. While inhabiting one, holding the special ability button as you move leaves a fuse trail on whatever surface you're touching. These creatures stick to walls and ceilings but can leap between nearby surfaces.

The goal in each fuse puzzle is to draw a connected line from a fire source to the webbing or blue squishy obstacles you need to destroy.

First fuse puzzle

Send Mui up to the cluster of white creatures, take control of one, and draw a fuse line from the webbing down to the flames. Don't approach the fire until the rest of the trail is in place. Once the line connects, jump the creature into the fire to ignite it.

Second fuse puzzle

This one adds a movable box. Start by climbing to the right side near the large squishy obstacle. Draw a fuse up the right side, around the obstacle, and back to the fire. When the obstacle burns and temporarily retreats, jump to the box and drag it left until it sits close enough to the ceiling that a white creature can leap between them. From that position, you can complete a fuse line from the fire all the way to the webbing.

Third fuse puzzle

This room has two blue squishy blockers that both need to catch fire simultaneously to clear a path upward. Move the box to the right so it nearly touches the rock above, then draw two separate fuse lines: one going the long way around to the upper blocker, and one to the lower one. Light both at the same time. When the fire passes the box, drag it over to the lower blocker. The moment that blocker drops, push the box onto it and climb up before the upper blocker closes the gap again. The timing is tight.

How to get past cameras and robots in the snow

After the fuse section, Lana heads back outside into a security area patrolled by cameras with red detection beams. Crouching in the large snow patches hides you completely, even while moving. This is the main tool for the entire stealth stretch.

The camera controlled by a button requires a two-step approach. Press the button to rotate the camera away, send Mui down into the snow, then press the button again to swing the camera back. With the camera now pointing away from the generator on the far side, order Mui to activate it, which permanently kills the camera.

The long-legged robot section works differently. The first robot patrols a platform above you. Hide in the snow when it faces your direction, then sprint underneath the platform when it turns away. From there, wait for another opening and dash across the bridge into the crawlspace. Inside, you'll find a lever that controls both a camera and a door. Pull it to cut the camera, have Mui sever the cable, then pull the lever again. The door opens and the camera stays dead.

The second robot is stationary and blocks the only exit. Press the button near the entrance to open an access hatch behind it, send Mui through, and use their ability to temporarily freeze the machine. Sprint to the grate with Mui following.

How to complete the elevator puzzle

Press the button near the door to make both cameras swing toward the elevator. Press it again immediately and run to the elevator with Mui. Have Mui activate the generator on the elevator to descend. At the bottom, pull the lever on the right to activate the second elevator into the mountain mine.

How to solve the first mining robot puzzle (Secret Hologram #3)

The moment you descend into the mine, turn left before going anywhere else. A hidden room holds Secret Hologram #3.

The full step-by-step breakdown of this mining robot section involves luring the robot into position using ore as bait. Drop down and grab the ore, then drag it to the ledge so the robot crouches to reach it. While it's crouched, send Mui onto its head. Pull the ore away so the robot rises, then have Mui jump to the generator and activate it, opening an elevator for Lana below.

As Lana, push the ore onto the elevator and ride it up. Drag the ore to the upper ledge to attract the robot's attention again, jump on its head, and leap across the gap.

How to solve the combined mining robot, camera, and webbing puzzle

This is the most layered puzzle in the mountain section. The room contains a mining robot that moves up and down, a camera, white creatures behind a boarded wall, and webbing blocking the exit above.

• Rip the boards off the wooden wall so Mui can reach the white creatures.
• Take control of one and ride the mining robot up to the top.
• Leap to the webbing level and start a fuse line from the webbing to the edge of the platform.
• Ride the robot back down and continue the fuse along its body: over the top, down the left side, across the bottom, and partway up the right side.
• When you're drawing the fuse on the right side, the camera will shoot the creature. This is intentional. The shot lights the fuse.
• If the timing is right, the robot will be at the top as the fire reaches its head, transferring the flame to the platform above and burning through the webbing.

Once the webbing is clear, ride the robot's head up and exit through the passage.

How to get the Mountain Flower

Reaching the flower is straightforward. Getting it to open is not. The flower needs to be activated by a piece of ore surrounded by green gas, but webbing blocks access to that ore. You need to burn the webbing using white creatures and a series of intermittent fire sources.

The fires in this section blink on and off. Time your movements to pass through the gaps, draw fuse lines to each obstacle in sequence, and use the creature's ability to light each one. The final fuse line runs from the webbing all the way left to the white creature spawning area's fire.

With the webbing gone, have Mui stand on the ore to neutralize the gas, then drag the ore to the flower. Mui jumping off triggers the gas release, which opens the flower. Press the button prompt to trigger the cutscene.

How to escape the mountain

After the cutscene, you're in a timed escape sequence. Follow Mui if you lose your bearings. The route goes: jump onto the large machine, leap right when it stops, climb the wall, jump back to the rock where Mui waits, return to the machine, crouch under an obstacle, use the mining robot's head as a stepping stone, crouchwalk under another obstacle, get back on the original machine, then head right and climb the yellow bars to safety.

How to navigate the underwater sections

After another cutscene, the chapter shifts entirely to a tropical beach and ocean environment. This second half introduces several new mechanics.

Black-and-yellow plants act as flotation pods for Mui, letting the companion travel underwater while Lana swims. Grab a plant, bring it to Mui, and they'll climb inside so you can dive together.

Black bars with eyes are locked gates. Swim Mui up to the eye symbols above the bars and use their ability to open them.

Yellow breath tubes scattered underwater let Lana reset her air supply. Use them aggressively.

How to get past underwater enemies

The underwater stealth section works like the camera sections above ground. Wait for enemies to look away, then move. Two specific encounters require using the fish that appear from Chapter 2. Send Mui to take control of one, use momentum to leap between pools, squeeze through the tunnel at the bottom of the third pool, then use the ink ability to blind the creature on the other side. Place a second ink cloud between the remaining enemy and the exit tunnel, then switch back to Lana and swim through to the black bars.

How to find Secret Hologram #4 and #5

Secret #4 is in the Demoa section during the underwater flower-carrying sequence. After passing through the small fishing village and reaching the area with thick seaweed and a large creature in the background, surface and climb onto the island to the left. The chest is there.

Secret #5 is inside the underwater facility. After riding the diagonal moving platform that shields you from a security camera, jump across the platforms to the right to find the chest.

How to complete the electric jellyfish puzzles

The first jellyfish puzzle is simple: have Mui hop across the jellyfish floating at the surface to reach dry land on the other side.

The second is more involved. Five jellyfish are scattered underwater and need to be nudged to the surface to form a path for Mui. Here's where to find each one:

• Jellyfish 1: Directly below you as you enter the water.
• Jellyfish 2: In a gap further right, guarded by an enemy. Be careful.
• Jellyfish 3: Just below the surface on the right side.
• Jellyfish 4: Far right, hidden among the flora near a small gap.
• Jellyfish 5: At the bottom of the right-side gap, also guarded.

With all 5 at the surface, guide Mui across.

How to complete the facility puzzles

Camera and movable platform puzzle

Press the button to lower the platform so it blocks the camera's line of sight. Drop down and hide under it, then have Mui press the button to send it left. Move with the platform as it travels, using it as mobile cover to slip past the camera. Jump to the stationary platform on the left, then have Mui call the movable platform down and back up again. Jump on it mid-ascent for a free ride to the top.

Camera and robot puzzle

The goal is to trap the patrolling robot in the camera room so it's out of your way. Drop down to the camera level, pull the large box all the way right, and stand on top of it. Have Mui activate the generator to open the door between the robot and the camera. The robot will charge at you when it spots you, but you can jump to safety before it reaches you. The door closes behind it, locking the robot in the room with the camera.

How to get the boat

With the robot trapped, approach the boat area. When the camera pans right, drop down and crouch under the platform to stay hidden. When it pans left, sprint to the switch on the right and pull it. This opens the exit. Go left, board the boat, and leave.

How to solve the seashell puzzle

The seashell needs an electric charge to open. The boat's magnet is your main tool here.

• Head left of the seashell and pick up the metal girder with yellow tape.
• Carry it to the right of the seashell, where another girder sticks out of the wall. Place your girder so the two are touching.
• Find the third girder to the left and pull it up to touch the others.
• Head all the way left to the small air pocket and park the boat.
• Swim right to the room next to the girders and touch the jellyfish inside. It floats up and electrifies the girder chain.
• The current runs through all three girders to the seashell, opening it.

How to solve the block puzzle

The sequence for the four-platform block puzzle is displayed on a broken sign in the air pocket above the puzzle area. Check it before placing anything.

• 'L' with a dot block: Located next to the door, flipped upside down. Grab it from the side to orient it correctly. Place it on the leftmost platform.
• Line with two dots block: Already on the second platform. Leave it there.
• Three-dot block: Outside the puzzle area, at the bottom of the sea to the left. Bring it back and place it on the third platform.
• Two-lines block: At the top of the air pocket. Get out of the boat, climb the yellow bars, and leap onto the platform to tip it, dropping the block down. Place it on the platform closest to the door.

How to solve the girder puzzle

This puzzle requires routing an electrical current from a jellyfish through hanging girders to an underwater button.

Swim right and touch the jellyfish to start the current. Get onto the middle platform, which has two generators flanking a switch. The switch moves whichever girders are still active (not locked by Mui's ability).

• Use Mui on the right generator to freeze the right girder. Use the switch to move the left girder over until it touches the girder rising from the water.
• Switch Mui to the left generator to freeze the left girder. Pull the switch right to move the right girder over until it connects with the electrified chain.
• Dive underwater and press the button to open the door.

How to complete the yellow rectangular block puzzles

The first door in this sequence just needs a block placed on the platform beside it. The second door requires moving large yellow rectangular blocks out of the way to expose a hidden switch. Move the blocks with the boat's magnet, surface to the air pocket, get out, swim down, and press the switch manually.

The hexagonal block puzzle that follows is the trickiest. Navigate up and around into what looks like a small elevator shaft, grab the large hexagonal block, and drag it out. The shaft rises. Once it reaches the top, put the block back on it and quickly loop around to the left. If your timing is right, you'll squeeze through the gap before the shaft lowers again.

From there, the chapter largely plays itself out. Swim upward when the path opens and follow the prompts to reach the end.

For more puzzle solutions and a breakdown of how Lana and Mui's cooperative mechanics work across the full game, the Planet of Lana II Wikipedia overview covers the core design philosophy behind the duo's complementary abilities. You can also browse more guides on GAMES.GG for additional puzzle games and platformer walkthroughs.