I suggest we make lots of slime and undead strata to spawn Scarlet Fortress, and hopefully the new level with it.

Undead will probably be the easier of the two the make with the sheer mass of Dark Matter in all the gates... Then again, there's also quite a bit of blue. :(

So I guess if you want to help... pick up lots of yellows and greens! I think we have the purple covered. :P