The Nopon Coin X-change is just one of the many shops that you can find throughout Xenoblade Chronicles 3. This shop only trades in gold and silver Nopon Coins, so your usual currency will not do you much good when you find it. All the coins youve collected till this point will pay out when you unlock Seekseek, the Nopon Coin X-change merchant.
How to get Nopon Coins
Nopon Coins are a type of currency that you can find throughout the Xenoblade Chronicles 3 campaign. This currency is rarer to find than the primary one, G, and comes in two grades: silver and gold. Some of the easiest ways to get this currency are through skirmishes, quest rewards, and defeating monsters.
How to unlock the Nopon Coin X-change
Once you have reached Colony 4, you will not be able to unlock the Nopon Coin X-change. The entrance to the cavern is next to the Namba Mound Camp and is marked with a question mark on your map.
To get to the end of the cave, you will need to complete the two trick door puzzles inside. Wake up to discover Seekseek and Burrburr, who are waiting for you to begin a quest called The Thrill of the Hunt. It's likely you already have the required coins.
Return to Seekseek and Burrburr to complete the quest and open the Nopon Coin X-change when you have collected the required coins.