Big Walk has seven purple gourd challenges in the southern part of the island. They are harder variations of familiar puzzles. Polygon reports that you can reach them by chairlift after the Green Tower or by walking around the southeastern coast, so finding one before the main ending is possible. [polygon-purple]

Reach the southern challenge area

Use the Green Tower’s chairlift route to travel south, or follow the southeastern coastal approach. The purple challenges may not appear on the large map when you first encounter them. Their availability and whether a map currently displays them are different questions. [polygon-purple]

Recognize the harder version

ChallengeWhat to watch for
TimerA longer, 30-minute countdown display
GolfCarry the existing heavy ball to the new hole
Lights and buttonsCoordinate between separated observation and input rooms
Speaker matchingCommunicate the sound without the earlier intercom
PosingDescribe or gesture the required shape
Obstacle courseThe timer starts at the beginning of the course
Symbol signsA larger set of 36 signs, including close lookalikes

These labels identify the challenge types. For exact paths between them, use the location images in Polygon’s purple-challenge guide. This page does not supply an independently surveyed coordinate map. [polygon-purple]

For the speaker challenge, agree on a visible way to represent rhythm or pitch before separating. For similar-looking symbol signs, describe the small differences as well as the overall shape. The challenge is to transfer the clue your team receives, rather than memorize somebody else’s answer.

Where do the purple gourds go?

KeenGamer’s completion route uses seven purple rewards alongside eight remaining red rewards in a separate green collection building near the tutorial/Map Room area. Its 15 receptacles lead to the White Key route. Do not confuse this building with the Green Tower used for the chairlift. [keen-ending]

Keep the collected rewards together and inspect the remaining receptacles if the key does not appear. For the later steps and their major spoilers, open the ending and White Key guide.

If a challenge is inaccessible to a player, the host can enable the official challenge-skip option before starting the session. [faq]