Some of my favorites which don't seem to be that well-known:
1. 13 Assassins - Japanese. A wild and very artistic samurai movie with an incredible fight scene that goes on and on. Beautiful plot.
2. The Man from Nowhere - Korean. Probably the best knife fight ever filmed. Very touching plot.
3. War of the Arrows - Korean. Best bow and arrow fight scenes.
4. The Good, the Bad and the Weird - Korean. A parody of The Good, the Bad and the Ugly. Another masterpiece in cinematography, wild fight scenes, a lot of comedy.
5. The Raid: Redemption - Indonesian. Very exciting fight scenes that go on and on and on.