It's been updated! I played it before and after the update, and after it was done.
I played with Explosion Specialization, Multiple Attack Specialization, and Mobility Specialization which sealed those two.
The Explosion Specialization was very strong and exhilarating, and the Multiple Attack Specialization was a well balanced combat experience.
When I played the game with the mobility specialization, I couldn't beat the enemy at all and lost about 5 times in 9 minutes, but I managed to clear the game and felt very satisfied.
If I get two coffees, I can be as fast as a ghost and be safer, and if I get four or more coffees, I can be agile enough to dodge through a crowd of ghosts!
A pleasant sensation that floods my brain juice!
The error drop in the Windows version I wrote about last time seemed to be a GPU-related error in Unity in general, and when I played without any other GPU-using application (OBS), the error did not occur. Sorry it was an environment-dependent issue for me!
PS. Sorry for posting the video again and again, but I had to do it again because this video from around the 10 minute mark is filled with the fun of my coffee play.楽しい作品をありがとう！