http://steamcommunity.com/sharedfiles/filedetails/?id=851436456 it is just sitting there and I was wondering what it was for
It is the bonus level, but I’m not sure why it’s not actually a bonus level yet. Maybe one of the devs knows?
…or maybe not. Who does know in this epic tale of mystery and suspense, sure to have you on the edge of your seat in fear!
From what I remember, that is a bonus level and it was accessible at one point. Earlier in time, they were experimenting with level transitions and found a bug in the bonus levels.
As to why they never included this level back in, I don’t know. Maybe they forgot?
(Then again, I may be forgetting myself. It was a long time ago and my memory as to why it was excluded eludes me. However, I do remember playing on that bonus level.)