The floors themselves are also far more complex than the previous strata. B26F and B29F consist of extensive warp mazes. B27F is mostly dark and littered with holes that force the party to fall to a large area in B28F, which in turn consists of powerful damage tiles and is the earliest place where the player encounters Depth Dancers, the strongest FOE in the labyrinth. B30F is comparatively simple, but also houses the strongest enemies in the game.