Congratulations on your great work, you have talent, currently the crowd uses retroarch and it is important that your game is functional in fceumm core, we hope you can fix the problem with the screen to choose characters as it is the only problem visible in picodrive, I have many games with MMC5 mapping and all work perfectly, I noticed some little problems in the demo, first of all the difficulty to execute a hadouken, delayed effect when the machine prevents the execution of a coup and then it is executed alone as it was memorized, the machine does not show Ryu's headband before and after the fight, it takes a long time to react after defending an attack, these are the main problems to be fixed, even so the demo is amazing congratulations again, if you really want to finish the game I'll help with some donation soon, we await a new demo with some improvement if possible.