There are 2 movies- but HKMDB have combined them on the Lone Shaolin Avenger page:
https://hkmdb.com/db/movies/view.mhtml? ... ay_set=eng
1) Lone shaolin Avenger (Bruce Against the Odds/Big Boss 2)-
https://www.kmdb.or.kr/eng/db/kor/detail/movie/K/03175
2) Four iron Men
https://www.kmdb.or.kr/eng/db/kor/detail/movie/K/03133
Volunteers for a split?