A group of boys and girls being bullied around by some other boys. The get beaten up in the beginning of the film so the decide to learn how to fight (kung fu or karate) and kiss their asses at the end of the film.
There was a “giant” among the bad guys whose head was shaved I think. In one scene of the film he comes out of his house or something to pee in the bushes. One of the good boys is hiding behind something a meter away from him. The pee stinks. The boy puts his finger on his nose and waits for him to go away.
I watched it around 1990 and it could have been made in the 80s.
I remember music in the film and romantic relationships among the good guys of the film.
What is it? Can you help: ?(