

The game itself is playable, but the first time you play it you will need to install the environment's window program.
I have modified the button A→Enter, button B→Esc, and button Y→Shift.
The first time you run the game, the window program for installing the game environment will appear, and you need to use the touch control or change the handle to operate.
For more information about the game testing process, please refer to the following YouTube video URL: https://www.youtube.com/watch?v=XwmOVUW2Bhg
Add font file which fix blank square [] at 'STEAM_LIBRARY_PATH/steamapps/compatdata/574740/pfx/drive_c/windows/Fonts` from Steam Discussion - Definitive fix for English translation
Minor FPS drop on these condition,
- Few area in the game
- Switch between fullscreen/windowed
- After close steam overlay
- Switch to different application (e.g. using Alt-Tab)
change to other app while the game run in fullscreen can cause the game look... broken after return to the game (change to windowed mode then back to fullscreen can fix the problem) :P
Appeared to run fine under Proton 5.0-10
Would not launch with latest Proton.

Everything works.