Extremely easy to play, sounds pretty much exact.
I found this out by accident one day, then added some effects and tweaking.
Use distortion and reverb. If your amplifier has reverb, set it around the
middle. Play with it. The reverb makes it, and the distortion is nice.
e|--------------------------|
b|--------------------------|
g|--------------------------|
d|--------------------------|
a|----------7-----6---------|
e|--6---7--------------5----|
Let each note ring for a bit, and add emphasis on the last note.
This also works for bass well. Also, for some added umph, for the
last note, maybe play five on the A string, too. Work with that.
You can also play it with power chords. Sounds good, but not great.
e|---------------------------|
b|---------------------------|
g|------------9-----8--------|
d|--8---9-----9-----8----7---|
a|--8---9-----7-----6----7---|
e|--6---7----------------5---|
I like the single notes better, but some people like the power chords.
Either way, have fun, and make tabs for other Resident Evil themes.