Ah, yes. Going against Killdroid, the ignorant idiot not caring about invisible walls and going past them like it's any ordinarily opening, and here you are... with a Revolver and questioning what to do. The Caretaker is already dead, Carepad, is also dead. What's next? And there he is... killing the next surivour, the time starts ticking down rapidly, making it 1:15. That's how long you'll have to stay alive for just to win.
But now... You don't have to reload your gun with each shot, which is nice... Bad thing about it is Killdroid's rockets going faster. Whatever that is, it's already better than anything.
As you prepared for the start, waiting for Killdroid's first move (It's high noon ahh moment) you suddenly pull out you're revolver and stun him for 2 seconds, allowing you to make a run for it!