First off the movie is made in English and was filmed in colour,probably made before 2008 but definitely not before 1985 or so.
The movie begins with a guy practising his martial arts by watching tapes and copying the moves performed by other fighters next to his caravan. He runs a fuel station though he is very poor as he lives in the desert with his friend who is obsessed with discovering aliens.
One night his best friend goes out and tries to find evidence of aliens in a sandstorm using a metal detector. He eventually stumbles across something that drives the detector crazy and starts digging. He gets possessed by a red demon spirit and he kinda like recruits other people by possessing them.
At that point an Asian girl is dispatched from Asia to go to him and fight him.
Skipping forward I also remember that this Asian girl talks about this specific sword or grip thing that is suppose enhances her power and can kill the demon, which turns out to be on the main characters guitar that his father used to own. Apparently the father picked it out of a meteorite
Anyhow, would greatly appreciate if someone told me what movie it is