Spirit Warriors (2000)

"Spirit Warriors" is a 2000 Action movie directed by Chito S. Roño and starring by Vhong Navarro, Jhong Hilario. In this eerie thriller from the Philippines, a group of high schoolers finds themselves contending with more than the usual teen angst issues. It seems they've run afoul of Ulanaya, a menacing, shape-shifting ghost bent on creating terror and pandemonium throughout the land. Can these adolescent, amateur ghost hunters summon the mettle to square off against -- and vanquish -- such a formidable otherworldly nemesis?