1995 film by Tsui Hark

A streetwise young man becomes a bodyguard to score quick cash. He befriends a disillusioned mercenary determined to begin life anew. They find themselves working together to foil an assassination attempt, but their partnership can't last.

Tsui escapes from a super soldier project and plans to lead a peaceful life. However, when his former comrades go on a violent crime spree, he takes it upon himself to end their reign of terror.

1999 film by Benny Chan