ps3wolvrine14
Dungeon Spirit
Look closer. It's paint and walls lol.
see it now? The outer block type gets wall blocks. You can't press slopes together. However a slope can cover walls. He does this is such a way that you can't really see the wall is a wall. Unless you zoom in.each block is different tho so paints probably change. He probably had to paint the blocks too .for a lot of them.