Big Walk: How to Get Shiny (Big Makeover Achievement)

The Get Shiny achievement (also named Big Makeover) is one of the harder ones in Big Walk to find, because the room that unlocks it sits at the end of a long, pitch-black tunnel route with no sign pointing at it. The short version: first finish the yellow tower so the tunnel system opens, then enter the tunnels from the blue tower, walk a specific route through the dark corridors — left to the green pipe, right and drop down, through a stretch of mixed-colour tunnels, left again to the green tunnels, straight across the multicolour bridge, then down the red zigzag stairs — and you land in a secret room where you can finally use the paint colours that were locked before. Colour yourself and your friends with them and the achievement pops.

The unlock at a glance

1. Finish the yellow tower. Delivering its red blobs unlocks the underground tunnel system.
2. Start from the blue tower. It is the easiest lighthouse to enter the tunnels from.
3. Grab a light. The tunnel entrance has a light source you can take; the tunnels are pitch black.
4. Head left to the green pipe. Then turn right, drop down, and head right into the mixed-colour tunnels.
5. Head left to the green tunnels. Keep going straight past a drop-off.
6. Cross the multicolour bridge. It is the checkpoint that confirms you are on the right path.
7. Drop down the red zigzag stairs. They lead to the secret room.
8. Paint with the free colours. Use the newly unlocked colours on yourself and your friends to get the achievement.

Before you start

You cannot reach the secret room until the tunnel system is open, and that only happens after you finish the yellow tower — the lighthouse in the northern part of the map. Finishing it means delivering its red blobs (the source calls them "red totems"), which unlocks the underground tunnels. This site's guide on opening the tunnel covers that whole yellow-tower step; treat it as the entry ticket here. There is a tunnel entrance by each of the big lighthouse areas, but the source says the blue tower is the best and easiest one to go in from, so this route starts there. Bring a light if you have one — the tunnels are completely dark.

00:14 — the yellow tower (lighthouse) is the prerequisite: finish it and deliver its red blobs to open the tunnels.

Success check: the tunnel system is open, so you can walk into the underground tunnels instead of bouncing off a closed door.

Step 1 — Start from the blue tower

Go to the blue tower and find its tunnel entrance. The source calls the blue one the easiest and best of the lighthouse entrances, so this is where the route begins. Walk up to the entrance doors and get ready to go inside.

00:44 — the blue tower is the best lighthouse to enter the tunnels from; its entrance doors are here.

Success check: you are standing at the blue tower's tunnel entrance, about to go in.

Step 2 — Take a light and enter the blue tunnel

Just before you go in, grab the light source the game leaves at the entrance — you will need it. The blue tunnel system is completely pitch black, so do not go in without a light. Step through the doors and enter the blue tunnel system.

00:53 — the game gives you a light at the entrance; the blue tunnel beyond is completely dark.

Success check: you are inside the blue tunnel system with a working light in hand.

Step 3 — Head left toward the green pipe

Once inside, the tunnel system has plenty of hidden side passages, but stay on course: head left, toward the green pipe location. The source points left here as the first direction to commit to, before the route turns.

01:11 — inside the tunnels, head left toward the green pipe location.

Success check: you have turned left and are moving toward the green pipe.

Step 4 — Turn right, drop down, into the mixed-colour tunnels

From the green pipe area, turn right, then immediately drop down, and head right again through the tunnel opening. This takes you into a stretch the source calls a "weird mix match" of different tunnel colours — a sign you are entering the deeper part of the route.

01:20 — turn right, drop down immediately, and head right through the next tunnel opening.

01:26 — the mix of different tunnel colours you walk into after the drop.

Success check: you have dropped down and are moving through the mixed-colour tunnel stretch.

Step 5 — Head left to the green tunnels and keep straight

Continue until you head left and reach the green tunnels. From there, do not turn off down the side path — the source warns that if you go that way and fall, you fall. Keep going straight past that drop-off.

01:40 — head left to the green tunnels, then keep going straight instead of taking the drop-off.

Success check: you are in the green tunnel corridor and have kept straight past the dangerous side path.

Step 6 — Cross the multicolour bridge

Soon after, you reach a bridge decorated with multiple colours. This is the checkpoint: the source says you know you are in the right place when you hit this multicolour bridge. Keep going straight across it as normal — do not stop or turn around.

02:08 — hitting the multicolour bridge is how you know you are in the right place; cross it normally.

Success check: you have crossed the multicolour bridge without turning off the path.

Step 7 — Drop down the red zigzag stairs

After the bridge, you come to a red zigzag staircase. The source says to drop all the way down from here, down into the tunnel system below. This is the final descent before the secret room.

02:20 — at the red zigzag stairs, drop all the way down to the tunnel level below.

Success check: you have dropped down the red zigzag stairs to the lower tunnel level.

Step 8 — Paint with the free colours at the secret room

At the bottom you reach the secret location — this is where you get shiny. Here you can finally use the colours that were locked before: pick them up and colour yourself and your friends with them. Once everyone is painted, the Get Shiny / Big Makeover achievement unlocks.

02:32 — the secret location at the end of the route, where the shiny colours unlock.

02:42 — colour yourself and your friends with the free colours that were unavailable before, and the achievement pops.

Success check: the achievement notification appears after you and your friends are painted with the new colours.

Success check

You have entered from the blue tower, followed the dark route all the way through, and reached the secret room with the unlocked paint colours. If the colours are not usable or the room is empty, you almost certainly have not finished the yellow tower yet — the secret room only opens its colours after the tunnel system is unlocked.

Common mistakes and recovery

• Trying before the yellow tower is done. The colours stay locked until the tunnel system is open. Finish the yellow tower and deliver its red blobs first, then come back.
• Entering without a light. The blue tunnel is pitch black. Grab the light at the entrance, or bring your own, before stepping in.
• Turning down the wrong side path near the green tunnels. The source is explicit: that way you fall. Keep going straight past the drop-off.
• Stopping at the multicolour bridge. The bridge means you are on the right path — cross it, do not turn back.
• Hunting for the room without the checkpoints. If you are lost, restart from the blue tower and hit the checkpoints in order: green pipe, drop, mixed colours, green tunnels, multicolour bridge, red zigzag stairs.

Player-count and version notes

• The source runs the route solo to demonstrate it, and the route itself — the tunnels and the secret room — is a fixed part of the world, so it does not change with player count.
• The painting step is cooperative in practice: you colour yourself and your friends. With a group, everyone can paint each other; the achievement unlocks for whoever gets painted.
• The yellow-tower prerequisite is covered by this site's tunnel-opening guide, and the blue tower's own route is covered by the train guide, so this article stays focused on the shiny secret room itself.

Source

This article is a single-source guide synthesized from one public video: How to Get Shiny in Big Walk | Big Makeover Achievement Guide by MonkeyKingHero (youtube.com/watch?v=8Lxp8RYmsJ0). Every section maps to a timestamped moment in that video, and the frames are temporary extracts used only to illustrate the steps, not final artwork. Facts were taken from the video's own captions and footage; this article does not claim cross-verification against other sources.