[Features]
Medium to high difficulty block breaking. The difficulty level gradually increases.
The game is full of unique gimmicks such as darkness, magma, black hole, etc... There are a lot of gimmicks that you can't find anywhere else!
Intuitive and easy-to-understand appearance and stylish music.
No in-game purchases. Completely free to play.

[Credits]
FreePik 
https://www.freepik.com/free-photo/spooky-foggy-forest_936262.htm#query=dark%20forest&position=2&from_view=keyword%22%3EImage by kjpargeter
https://www.freepik.com/free-vector/star-life-cycle-realistic-set-with-isolated-icons-shiny-celestial-bodies-dark-sky-background-vector-illustration_26763932.htm#query=black%20hole&position=44&from_view=keyword%22%3EImage by macrovector
https://www.freepik.com/free-vector/vector-concept-background-with-night-city_3823948.htm#query=amusement%20park&position=7&from_view=keyword%22%3EImage by vectorpocket

nanamiyuki-no-atorie
https://nanamiyuki.com/

muryo-kokaon-de-asobo
https://taira-komori.jpn.org/

kokaon-lab
https://soundeffect-lab.info/

DOVA-SYNDROME
https://dova-s.jp/