Wei Zi's blindness was spoofed.

I seem to have seen the movie you mentioned when I was seven years old. It has been more than 20 years now. Forgot the title and some plots. I remember several clips in the movie. First, some bad guys tried to blow them up with explosives and disturb them with noise. Fortunately, one person came to save them. Secondly, I remember that pig's head could talk, which was very strange at that time. Now I think someone should use qigong to make the pig's head talk. Thirdly, at the end of the film, I remember that there is a grave to separate the villains.

I wonder if this movie is what you want.