There was once a company called Cave that made the best bullet hell shmups in this part of the galaxy.
A couple of ex Cave employees then made their own studio and created Aka to Blue;
PCB can be bought here:
https://exa.ac/product/aka-blue-type-r/?v=0f177369a3b7
The game is supposed to be really good and the genre of shmups is in a bad state, starving for good titles.
The only problem is, Aka to Blue was released to mobile and arcade only.
People are now afraid this little gem is going to fade to obscurity.