Old old Kung-Fu flick

Been looking for this film for a decade now… saw it on vhs in the eighties…

There´s this fight scene on a beach, where the evildoer finally rips out the heart of his opponent.

Also remember there´s this japanese martial artist arriving to help the bad guys.

This scene could be from the same movie, not sure though; one guy wanders in the forest, leaves starts blowing in the wind, all of a sudden enemys rise from underneath the leaves and attacks him.

could “the ultimate ninja” have the ninjas in leaves part?