What about the elevators can go up, and there are islands up there, such as a gold island were there are a lot of gold enemies and at the end, there is a gold alchemy machine, similar to the sanctuary one. Ideas for islands. (each island has a boss)
The gold island
The game is about going down and finding a way to open the core. And floating islands sound too fantasy even for SK universe.
Be careful what you wish for.
There used to be gold enemies throughout the game. Far from being a treasure hunter's dream, they were powerful foes... and totally invulnerable against all weapons. Gold enemies were a signal to run away. Fast.
To flesh out this idea, you want more levels... But it seems like you're suggesting a color scheme, rather than what it would be like to play these levels. What would a gold machine make? Why are the islands there, and how do they fit into the mission of reaching the core? And if all the enemies are invulnerable, what's the point of this mission?
http://www.quickmeme.com/meme/3pghvl/
Reason: gold mobs can't be killed.
Maybe the levels will be for avoiding monsters? Learning to use strong shields? Maybe there is an arena where there are just gold monsters after you and they disappear if you press a certain button, but if you don't, then there will be even more monsters after you.
that sounds very crazy cool. its either a doo or Die! mission. that would actually be fun to dodge all those critters and stuff. sounds awesome to me.
i have no soul