Hello,
First of all thanks for all your great work on this great emulator.
Unfortunately the Namco-NA games (tested with cgangpzl, emeralda, exvania, numanath and tinklpit) don't seem to work on android (NVIDIA Shield - Retroarch 64bit) - just black screen hanging at around 34 fps.
Another thing I've noticed is lack of sample playback in Bomber Man World / New Dyna Blaster - Global Quest - the explosion sound is very weak. This was fixed in MAME (0.142u2: Alex Jackson hooked up sample playback in Bomber Man World / New Dyna Blaster and clones and removed GAME_IMPERFECT_SOUND flag).
Also Ketsui doesn't have default settings (it won't allow continues after game over).
Thanks a lot in advance.
edit: one more - all (I think) rohga driver games (Rohga, Nitroball, Wizard Fire etc.) should run at 58fps.