You’ll want to get to the side of this boss, so just roll to the side and begin your assault. Rom doesn’t have the best defense so you will quickly eliminate one third of its health bar. At this point it will start to vanish, do not let up. You will do increased damage while Rom is teleporting so keep swinging. Once the boss is gone start scanning around for its new location. Now is when things get a bit tricky.
The no longer docile Rom, the Vacuous Spider will now go on the offense, just not directly. There are three actions you need to be aware of. The first is when Rom looks up at the sky. Immediately start dodge-rolling to either side because huge blue rocks will fall from the sky and decimate anything beneath them. The second action occurs when you get a bit too close to Rom, the huge spider will roll onto it’s back and summon those same blue rocks but this time from the ground. Dodge backwards in order to escape the range. The third action looks like the first one but only happens at close range. Rom, the Vacuous Spider will stand up and a blue light will appear by its mouth, this means it’s about to explode so get away.
Continue the same strategy you used for the first phase but keep on your toes. Each of Rom’s moves has distinct noise so you’ll know when it’s time to dodge even if you can’t actually lay eyes on the boss. So keep calm and pay attention. Get in, do your damage and you’re ready for the third and final phase.
The final phase is just like the second phase, only this time Rom, the Vacuous Spider has a new ability for those who get close. Rom will try and grab you in an attempt to stun you. Once this happens you’re pretty much done for, especially if there are still smaller spiders roaming about. You’ll want to stick and move when attacking Rom in this phase. By now you should have all your dodge timing down so just dance your way to victory.
Now that you’ve won, claim your Kin Coldsblood (which grants you 20K Blood Echoes), and approach the woman in white. Bloodborne becomes an entirely different game from this point on…
For more guides, tips, tricks, and information be sure to check out our Bloodborne wiki.
