@Anima
Last weekend I participated in a retrogaming meeting in France called Retro Game Alpes 2017. I brought my Falcon, I already did it 2 years ago (and I posted a message
here). This time I showed the beta release of Cho Ren Sha with speed improvement due to DSP routines.
Cho Ren Sha was the most played game on my Falcon, beating even Racer 2. I was standing near my Falcon during 2 days and according to my observations, more than one hundred players have tried the game (the event gathered about 2,000 people per day). It was funny to see young children, moms or grandparents having fun on a Falcon with a japgad
People were really impressed. I spoke with some of them, they were amazed to see what a Falcon could do.
Sure, the game is too much hard for young children. However, a man manages to reach the level 4! He told me he played on the Windows port of Cho Ren Sha some years ago
You wrote you have some ideas to improve Cho Ren Sha. I sincerely hope some day you will find some time to do so
edit : oh and by the way here are some photos of the event, the Falcon running Cho Ren Sha is one of them :
https://goo.gl/photos/nntWuNumXQeQhty18