We edge into the colossal night-time arena, six of us bunched nervously together. 'Right,' I say, 'let's plan this, be careful not to...' One of our group has wandered too far and triggered some sort of event. A thunderous fanfare plays in the distance and six doors open. Oh, look, a monster each. Running now, I'm being chased by some kind of fleshy zombie-like sprinter, I'm flat out and just keeping my distance as I try, with stupid-fingers, to load my revolver. I think I'm screaming, the bloody thing behind me certainly is, arms outstretched, all teeth and claws. As I run I must trigger another event as suddenly the fanfare sounds again and more doors, much larger than the first ones, slide open. 'Hang on, hang on!' I scream.