It seems to me that many of these examples do not qualify at all but are just "final dungeons" without the screaming "I'm it" part. For example in Fallout 3 you walk along a way which you walked before, only having to fight more enemies now - nothing flashy at all about it. Others seem similar. Maybe we need to cut out a lot of stuff?
Cuppa
topic
07:11:23 PM Aug 4th 2010
We should really find a way to break up the video game section, seeing how big it is.
Mr.Didact
09:21:40 AM Mar 8th 2011
We should change the picture to the Collector Base in Mass Effect 2. I mean it's beyond a Red Mass Relay that leads to the accretion disk of a massive black hole in the Galactic core surronded by a ship grave yard which doubles as an asteroid field which is home to a giant Space Station where they melt down specimens into goo. Populated by zombie robots and mindless bug people. I mean really.