Notice
Your enthusiasm and support made this event a great success. 👻
🏆 Winners List
- 1st Place: Tsukihi
- 2nd Place: DJSuperNOVA
- Lucky Draw Winner: Dokka
🎁 Event Prize
O2Jam Limited Edition T-Shirt
The winners will receive a separate email requesting the information
needed for prize delivery. Please check your inbox and reply accordingly.
Once again, thank you to everyone who joined the event.
We look forward to bringing you even more fun and exciting events in the future!
Thank you.

Old Ranking and Play Data Migration
Recently, we updated social login and introduced a new overall ranking system.
Many players are enjoying the update, but we understand that some of you miss seeing your previous rankings and records.
To address this, we’ve prepared two pages:
one to view the previous rankings, and another to apply for play data migration from your old records.
Old Ranking: https://rank.o2jam.com/content/leaderboard/player/overall/
New Ranking: https://rank.o2jam.com/content/leaderboard-new/mastery/overall/
📥 Apply for Old Play Data Migration
Because the new login and ranking systems are quite different from the old ones,
automatic play data migration is not currently possible.
If you wish to migrate your previous play data, please apply through the link below.
We’ll process migrations sequentially after receiving your requests.
Application period: From October 18
Migration processing period: From October 23
It may take around one week to complete the migration after applying,
and the processing time may be longer depending on the number of requests.
➡ Apply here: https://rank.o2jam.com/member/data-migration/
[Update News] Check Out the New Features Now!
◈ New Feature Updates
- Social Login Added
You can now log in with the same account across multiple devices and continue your play progress seamlessly.
Enjoy friendly competition with other players through the newly improved ranking system featuring various modes.
- Nickname and Country Flag Display Added to the Lobby
Your nickname and national flag will now be shown on the lobby screen.
◈ Bug Fixes and Improvements
Enhanced Sound Quality During Gameplay
Enjoy even clearer and more immersive music while playing your favorite tracks.
🔔 New Song Update
[The Last Witch] – Transin A track themed around the witch hunts of old Europe, capturing the grief and anger of those who were unjustly sacrificed. But this song doesn’t just stay in the past. Even today, countless people are hurt by just a single comment on social media or a few words in an article. On top of an intense Trance sound lies a beautifully delicate piano melody. This harmony allows you to feel the pain, sorrow, and beauty that bloom even within cruel reality. The cries that come alive at your fingertips, and the beauty that blossoms within them. The Last Witch — face it now.
[Sailing Beyond the Fading Stars SHD] – JAGAM JAGAM’s emotional rock number, Sailing Beyond the Fading Stars. Carrying the message of pushing forward beyond the “waves” of parting and hardship, this track now returns in SHD difficulty. Will you be able to overcome the bigger wave as if facing it head-on? If you’re ready, sail beyond the fading stars!
▶️ Gameplay Videos
- [The Last Witch]
- [Sailing Beyond the Fading Stars SHD]
📢[Notice] Temporary Workaround for Note Display Issue on Some Android Devices
Hello, this is O2Jam.
We have identified an issue where notes do not display during song playback on some Android devices, depending on their language settings.
We are currently working on a fix and plan to provide an update as soon as possible.
✅ Temporary Workaround
Changing your device language to English (United States) will allow normal playback.
✅ How to Change (Android):
Settings → General management → Language
Select English (United States) and set it as the primary language.
We apologize for the inconvenience and are doing our utmost to resolve this issue.