well this is intresting
i would have to agree with zman3po i dose repeat. however this may be the begining for you and this track. Like solice dark said there are many possibilities. This sounds like a cross between buffy the vampire slayer and doom! let's see.... I got it! try infusing these two very diffrent worlds, which in a way they are more similar than you think. you would need a heavier bass to start and this sounds like this can be used in the middle or filler. gapping the bridge between these 2 worlds. but hey, it's you're music and i can dig it either way.
go here if you need more insparation
gh.ffshrine.org
this is a place where you can find alot of gamming music download able for free. click on mp3 while your there and find your game and then it's song, good luck!