Wow, amazing speed of development/update, very nice victor. Thank you very much!
Also thanks Koichiro for your work on music 
Amazing work Victor & Koichiro!
Congratulations really. So, maybe you can add the sound of Konami PAUSE as the original ?
No.... I prefer this way.... The music continues....
Perhaps the keep-music-playing could be made optional as well? I wouldn't mind the music to be paused either (like the original).
Or, otherwise, a nice touch: lowering the volume a bit (like it's playing in the background).
Something I wondered about, regarding the keys that need to be pressed simultaneously: isn't there a chance that some keyboard matrices could prevent the registering of all keys? Is this MSX model dependent, or (should this be) the same for each MSX (generation)?
It's potentially an issue for PC (emulator) users anyway.. ;-)
I guess it would be more difficult / more work to create a menu with option toggles? (Regardless of this potential issue, a bit nicer IMO)
Anyway, great work!
-edit: NB making the menu joystick accessible would be great e.g. when run via SofaRun I reckon? 
Great! The solution is the bluntest there was available, but if it works, it works! Are there particular places where the optimizations and turbo are easily visible?
Great! The solution is the bluntest there was available, but if it works, it works!
I find the "keep pressed keys" faster for start the game...
Are there particular places where the optimizations and turbo are easily visible?
In the sprites..
Great! The solution is the bluntest there was available, but if it works, it works!
I find the "keep pressed keys" faster for start the game...
He's referring to the solution to the music pitch (I bet).
