I had another dream just recently, which was about Labyrinth of Touhou 2. Apparently I was playing through the next 8 floors in addition to the normal 21, making it all the way to Floor 29 where I fought a mirror team. Exact same levels, stats, equipment, their names were the same with the addition of Shadow, so "Reimu Hakurei's Shadow", everything. And they were organized by the left and right sides, only four of them. Every time I switched out a character, that corresponding character on the other side was also switched out, to be replaced with the same person. Eventually, it got down to the point where Marisa was the only character left on both sides, able to survive through sheer dodging and a lot of skill points, until I let loose with a Master Spark and defeated them. I didn't get any rewards afterwards, but the cutscene showed the Reimu and Marisa talking and finding a key which unlocked the next door, which led to Floor 30. And just as I get to the staircase, I wake up.