To solve the Blue Slope Sign music puzzle next to Moon Light, copy the four required panel/music clues from other completed puzzles, bring the matching pieces back to the blue structure by the moon, and use the nearby purple-post-ending shortcut for the sound clue if you have it.
This is the moon-side blue house structure puzzle beside Moon Light, where the missing parts come from earlier completed puzzles around the map. Some notes for Big Walk use similar wording for the Green Platform headphone/radio puzzle near Blue Tower; that is a different chair-and-headphones setup, not the route covered here.
What is the moonlight blue slope puzzle in Big Walk
The puzzle starts at the blue structure by the moon, the one players visit after recording the big ball lights. The structure expects you to bring back several matching designs and a music/sound cue from other places you have already cleared.
Do not mix this up with the green platform puzzle that uses a chair, headphones, radio, red button, and a distant microphone box. That separate puzzle is solved through an audio trail between Blue Tower and Green Tower; the Moon Light puzzle is about copying and returning panel/music-block clues.
What the blue structure needs in Big Walk
| Requirement | What |
|---|---|
| Copied panel designs | Match the required designs from completed puzzles elsewhere on the map. |
| Music/sound clue | Remember the exact sound from the sound block location before returning. |
| Return to Moon Light structure | Bring each matching piece or cue back to the blue structure by the moon. |
| Screenshots or notes | Save every design before leaving so you do not have to repeat the trip. |
KEY!
Before you leave Moon Light, study the open slots at the blue structure and record what you still need. The first three clues are visual panel designs, while the last one is a sound cue that is easy to forget once you start walking back.
The puzzle does not give you clean named map coordinates for every panel source, so treat your own screenshots as the route map. If a panel location is already completed, you can usually enter, identify the needed piece, and then carry that information back.
Take screenshots of all four clue slots before you leave Moon Light, then screenshot each matching panel or sound location as you find it.
Four clue locations to visit
| Clue | Where to get it |
|---|---|
| First panel | The far area shown first, away from the Moon Light structure. |
| Second squiggly panel | The completed puzzle where you can jump out through the side after grabbing the squiggly design. |
| Third panel clue | The puzzle where players point at different locations with body parts. |
| Fourth sound clue | The nearby purple-access spot after the main ending, or the far side of the map if purple access is locked. |
Use that order if you are doing the whole run from scratch. The sound clue is worth saving for last because the purple-access version sits much closer to the Moon Light area, while the non-purple route sends you across the map and back.
How to complete the Blue Slope Sign music puzzle in Big Walk
This route collects the three panel clues first, then finishes with the sound cue so you can return to Moon Light with the least wasted walking.
STEP 1/7
Start at the moon-side blue structure
Check the Blue Slope Sign puzzle beside Moon Light and note the missing panel and music-block clues.
STEP 2/7
Collect the first panel design
Go to the first far area and copy the panel design that matches one of the Moon Light slots.
STEP 3/7
Get the squiggly panel
Visit the completed puzzle with the squiggly panel, grab the needed design, and leave through the side opening if that puzzle is already cleared.
STEP 4/7
Copy the body-parts puzzle clue
Go to the puzzle where players point at different locations with body parts and take the third required clue from there.
STEP 5/7
Use the purple sound route if unlocked
If you have post-ending purple access, take the nearby purple route to the sound clue because it is much closer to Moon Light.
STEP 6/7
Use the far sound route if purple is locked
If purple access is not available, cross to the far sound location and memorize the exact cue before starting the return trip.
STEP 7/7
Ride back with transport where possible
Use the trains and cart to shorten the return from the far side of the map, then apply the collected clues at the blue structure.
Video help
Backtracking mistakes to avoid
The most common waste of time is leaving Moon Light without a clear record of the symbols. A half-remembered squiggle or panel shape can turn into a full return trip, so get a clean screenshot before moving on.
Save the sound clue until the end of your route. If you grab it early, you still have to travel through the other clue locations while keeping the cue in mind, which is much easier to mess up than a screenshot.
If you already have purple access from after the main ending, do not take the far sound route by habit. The nearby purple-access sound location is the shorter play and keeps the final stretch close to the Moon Light structure.
Related Big Walk guides
Frequently Asked Questions
Can you do the sound clue before finishing the main ending?
Yes, but without post-ending purple access, the sound clue comes from the far side of the map. That means a longer return, and you need to remember the exact sound the whole way back.
What helps you get back faster if the sound clue is across the map?
Use the trains and the cart for the long return from the far sound location. They cut down the walk back to Moon Light after you have the cue.
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