Thank you very much.
Sadly about the glitches there is nothing that I can do as my abilities do not go beyond using SDK's that other people wrote.
In this game I used NGDevKit which is great and earlier when I was porting the game on NG I was able to find a sound problem and isolate it and Damien the author of NGDevKit was able to fix it. Afterwards the problem never occurred again, but all my testing were done on MisterFPGA's Core and MAME, so it may be a problem that is visible only on the real hardware.
As for the graphical glitch, I really never seen it before. To be honest I have absolutely no idea why it exists.
I am glad that you enjoyed the game and thank you for the kind words and for the video.