Old kung fu movie I can't remember the name for the life of me?

So for the life of me I can't remember this old kung fu movie I used
to watch when I was a kid... it was dubbed but it was about I think 5
kids ( I think 5) and they had the pretty martial arts teacher, but
they stumble upon a soldier who then teaches them more kung fu with
crazy training like one of the kids had to strengthen his teeth by
biting down on sugar canes and he falls in love with their lady
instructor..... later in the movie they end up fighting a small army
and the big boss at the end, there was also a hopping vampire in it
that bonded w/ the fat one of the group. I remember only like three
characters in the movie, one was a little monk boy w/ one earring and
he ended up teaching himself drunken boxing which was huge for the big
boss fight... there was the fat one who ended up bonding with the
hopping vampire and having a sumo match w/ one of the bad guys.... and
the small bald headed kid who did the sugar cane training. Its funny
I remember who some of the characters were BUT I CAN'T THINK OF THE
NAME OF THE MOVIE lol we called it "Kung Fu kids" when I was little.
If anyone knows the name or can point me in the right direction that
would be AWESOME!