the game is going to reach perfection, that's great!
Thanks!
If I had to do it again there are some things I would change, but I think the result will not disappoint anyone.
Very important to play it in the real hardware, it is incredible the difference in emulators, not only visually but in the gameplay.
To make the game as the original was necessary an immediate keyboard response, which requires not only that the game runs at 50 fps, but not to use techniques such as double buffer and that the time between reading the keyboard status and the user sees the response on screen is the minimum possible. But the response of the keyboard usually has a delay in emulators that does not occur in the real hardware (either by the management of the keyboard itself or if the emulator includes an internal double buffer), in others games this is hardly appreciated because fewer fps disguise the issue and it only involves moving 1 pixel more or less or a frame before or after, but, in PD hit the ball a frame before/after supposes that the ball angles are different and affect the aim.