Getting every badge in Heartopia means tracking down some seriously cryptic hidden achievements, and the Onsen Buddy badge is one of the trickiest to figure out on your own. The only hint you get is a vague clue about swirling steam and deepening friendships. If you want that exclusive Onsen title displayed on your profile, you need to know exactly where to go and who to bring along. This guide breaks down every step so you can grab this badge in minutes.
What Is the Onsen Buddy Badge?
The Onsen Buddy badge falls under Heartopia's hidden achievement category. These achievements appear as question marks in your Watch app until you complete them, and the clues are intentionally mysterious. For this particular badge, the hint reads: "Amidst the swirling steam, friendship quietly deepens."
Two keywords point you toward the solution: steam (referring to Onsen Mountain) and friendship (meaning you need another player). Complete the requirements correctly, and you unlock both the badge and the Onsen reward title.
important
You must reach D.G. Member Level 15 before the achievement system becomes available. If you meet all the conditions but nothing triggers, double check your guild rank first.
How to Unlock the Onsen Buddy Badge
Follow these steps to secure your badge without any wasted trips:
Step 1: Unlock Achievements
Open your Watch app and navigate to the achievements section. If you see the achievement menu, you are good to go. If the option is missing or grayed out, you need to continue completing daily requests until you hit D.G. Level 15.
Watch achievements screen
Step 2: Find a Friend
You cannot earn this badge solo. Either invite someone from your friends list to join your session, or ask a random player in your current server if they want to team up. The other player does not need to have achievements unlocked on their end; only your own progress matters.
tip
Use the in-game chat or community Discord servers to find partners quickly if your friends list is empty.
Step 3: Travel to Onsen Mountain
Open your Map and locate Onsen Mountain in the northern section of the world, near the Winter Utopia bus stop. Both you and your friend should teleport there together or meet at the location.
Onsen Mountain on map
Step 4: Enter the Hot Spring Together
Once you arrive, head straight for the steaming hot spring pool. Both players need to jump into the water at roughly the same time. The moment you are both standing in the spring, the achievement triggers instantly.
Onsen hot spring pool
You will receive a notification confirming the Onsen Buddy badge along with the Onsen title. Both rewards can be equipped immediately through your profile settings.
Onsen Buddy Badge Rewards
You can display up to three badges on your profile simultaneously, so consider pairing Onsen Buddy with other social achievements to show off your multiplayer dedication.
Troubleshooting Common Issues
Sometimes the badge refuses to pop even when you follow every step. Here are the most common problems and fixes:
Achievement Not Appearing
Your D.G. rank is below 15. Check your current level in the Watch app under your guild status. Keep completing daily requests until you cross the threshold.
Badge Did Not Trigger in the Spring
Make sure both players are fully inside the water, not standing on the edge. Try jumping in again or having both players exit and re-enter together.
warning
Standing near the spring without actually entering the water will not count. You must be submerged.
Friend Already Has the Badge
This does not affect your unlock. Even if your partner earned Onsen Buddy previously, accompanying you still counts toward your achievement.
Profile badge display
Other Hidden Social Achievements Worth Chasing
If you enjoyed hunting down Onsen Buddy, Heartopia has several other hidden badges that require multiplayer interaction:
tip
Check the weather forecast on your Watch regularly. Meteor showers are rare, and missing one means waiting for the next cycle.Quick Reference Checklist
Use this checklist before heading to Onsen Mountain:
- D.G. Level 15 or higher confirmed
- Friend online and ready to join
- Both players teleport to Onsen Mountain
- Enter the hot spring water together
- Badge and title received
With these steps completed, you now have the Onsen Buddy badge and the exclusive Onsen title to show off on your Heartopia profile. Grab a friend and enjoy that relaxing soak.