You'd be running for you're life, reaching Door 199 gasping for breath as the Door locked shut behind you, with Seek banging on the Metal Door, as you catched you're breath, it would speak in a demonic and barely understandable tone.
"Don't think this is over now..."
As you regained you're breath, you kept on moving, with a stressful sigh you pushed open the 'Last Door', Door 200. As you entered, it would appear to be a Large Dam with exactly 4 Floor's, a bunch of different Valve's scattered along, a bunch of Pipes connecting with each other on the Wall's, many Drawer's, Locker's and Boulder's in the path's, with a Gate at the End, and a Generator, ready to be powered on the Bottom Floor, unfortunately... The Dam would begin to be rapidly filled with Seek Goo, it filling up the 3 Floor's of the Dam leaving only the top one as a few Seek Blob's appeared around, with one big main one with many cluster's of eye's, them all staring at you, unblinking as many object's, pallet's and platform's rose from the Seek Goo, floating on top of it as to allow you to parkour across, the Dam Seek's voice would echo through-out the Dam, it having the same demonic tone.
"You thought you we're safe? This, is where i can truely shine... Watch, you're, step."
Guiding Light would then begin to do it's thing, lighting up the area's where the valve's are located in, it being quite dark in the Large Room as the Seek Dam let out a..
(Evil Laughter)
{Phase 1}