Rom, the Vacuous Spider isn't the most difficult boss you'll face in Bloodborne, but he does have a very, very narrow margin of error. All you have to do is rush up to his sides — his head is heavily armored — ignore the smaller spiders he spawns in, and attack him as quickly as possible. With a perfect run, you can knock him out in a under a minute, easy. Fail to dodge one his area-of-effect attacks, or get hit too many times by his minions, and you're Lamping it.
Check out the video above to see us take on Rom, the Vacuous Spider, and stay tuned for more Bloodborne boss guides throughout the week.