Floor 1139: There's a megaphone and 2 portals between it. Even the lightest step makes the sound go into the megaphone, causing the sound to enter the portal and going through the megaphone, then the portal, then the megaphone again, and it repeats infinitely. This eventually causes the sound to go so loud, that the soundwaves actually impacts the walls. You bring out your jukebox and turn it down to negative levels, which absorbs sound instead of emitting it. Then you go to the next floor which is obvious enough that the thread's title obviously has a rule where you must obviously enter the next room at all costs because obvious reasons because this tower is obviously infinite.
...he's not here. Captain Obvious is SUPPOSED to appear when that happens. Oh, right. You're in outer space now, so you're gonna obviously lose gravity. That doesn't bode well.