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- MOMIBOSU
"ULTRA0" is Out Now! Launch Sale is Live!
Thank you so much for your continued support! Today, Tuesday, June 2, 2026, PenGames' brand-new title "ULTRA0" has officially been released! We are currently running a limited-time launch sale where you can purchase the…
Announcement2 changesGameplay - MOMIBOSU
[New Release] ULTRA0 Launch Date Confirmed for June 2nd, 2026!
Thank you so much for playing and supporting our games! Today, we have some exciting news to share with all of our wonderful players regarding PenGames' next project. The release date for our upcoming Visual Novel × Cas…
Store2 changesGameplay - MOMIBOSU
Update to Ver1.1.1
Minor bug fixes implemented. Other adjustments made. 軽微なバグ修正実施。その他微調整を実施。
Announcement - MOMIBOSU
Update to Ver 1.1.0
Fixed a bug introduced when adding warps in Ver. 1.0.4. - Now, you can also jump out of the round object using the jump button. - Added an "Agile Mode" that allows for multiple dashes. This is intended to be similar to…
Announcement1 changeFix - MOMIBOSU
Update to Ver 1.0.10
Since many players didn't realize that they can view item descriptions by pressing the jump button on the map screen, I added an explanation. マップ画面でジャンプボタンを押すとアイテムの説明を見れることにみんなが気づかないので説明追加。
Announcement1 changeMaps - MOMIBOSU
Update to Ver 1.0.9
difficulty adjustment 難易度調整
Announcement - MOMIBOSU
Update to Ver 1.0.8
Difficulty adjustment 難易度調整
Announcement - MOMIBOSU
Update
Fix small bugs. バグ修正。
Announcement - MOMIBOSU
Update to Ver 1.0.7
difficulty level adjustment 難易度調整
Announcement - MOMIBOSU
Update to Ver 1.0.6
Fix small bugs. マイナーバグ修正。
Announcement - MOMIBOSU
Update to Ver 1.0.5
Fixed a small bug. 軽微なバグ修正。
Announcement1 changeFix - MOMIBOSU
Update to Ver 1.0.4
Add new warp points. 新しいワープポイントを追加
Announcement1 changeGameplay - MOMIBOSU
Update to Ver 1.0.3
Some game difficulty levels have been adjusted. 一部のステージの難易度を調整
Announcement1 changeGameplay - MOMIBOSU
Update to Ver 1.0.2
Two new warp points have been added. I believe this makes it easier to move around! ワープを２か所増やしました。これにより移動が楽になります。
Announcement1 changeGameplay - MOMIBOSU
Regarding compatibility with Steam Deck
To all Steam Deck users, I am pleased to inform you that MOMIBOSU has been confirmed to run properly on Steam Deck. That’s all.
Announcement - MOMIBOSU
Update to Ver 1.0.1
Modifications: 1. Add Icon for window, taskbar and so on. 2. Fix a bug.
Announcement1 changeGameplay
