DREAM 1
(my comments look like this)

A kikiland metro system. It's extradimensional and shapeshifting. When you enter it, it adapts to your needs. The people inside (they're probably just vinyl shells), the social circumstances, all generated for you.
When you enter it, it knows where you want to go. It spawns exactly one train just for you. It will be the first, it will be the last. You have to catch it to go where you need. If you miss it, there will be no more trains, and you have to wait till the metro station closes for the night and reopens.
It's always you entering, catching the train that arrives just in time, going to where you need to go and exiting.
Because of its extradimensional nature, you cannot agree to meet someone there — every person has their own personal metro generated just for them every time, with exactly one train going exactly to the station you need.

It's used by BLA as a form of control. When they don't want you to go somewhere, the train won't spawn. Or, it might diverge and get you to some other place. It isn't known whether the map can be altered on the fly or not. So far, the consensus is that the map is persistent and is a public knowledge, and it's just the metro itself that is extradimensional. But, no one ever saw the real metro in its real form, and not the top layer that protrudes into the three-dimensional world you can interact with. It might be the case that they can make people disappear by creating ad-hoc stations that don't intersect with the real world, trapping them in places that are nowhere in particular.

(it took seeing BLA once in one dream to make all the following dreams include them. Sigh.)

Kikiland also has a school, and it always had it. I befriended a chemistry teacher there. His classroom is small — exactly as deep as other classrooms, but really narrow. There are no desks there, just his desk and some bookshelves. Chemistry isn't a priority there — his class exists only because it should. No one attends it. This is why he was so pleased to meet me. Despite his classroom being located on a busy floor, its door is overlooked by students, and NO ONE ever enters it. He just sits there, waiting for students to arrive, but they never do.
He has a secret, though, because of course he does. In the game Control, if you complete the main storyline before you complete some side quests, one of the main characters will be sitting in the C-suit hall, doing her things, waiting for you to come and talk to her. But at the same time, she will be waiting for you deep down the oldest house's mines, again, just sitting there, waiting for you to take the quest. This teacher is the same.

If you have a good relationship with him, and you attend his class, the classroom will change to a tunnel entrance, with him being the security guard. He's your friend, he'll let you in. It looks like Fallout's vault entrance. THIS is how you enter the REAL kikiland metro. (Dream 1 ends here.)

Episode 2
Tiny waterborne rat puppies whose mouth is their entire face unfolding like a piece of paper with teeth covering it as a grid. (I wrote about them already, but here they are again.) They are _tiny_, a bit like tadpoles. Also, like tadpoles, they die if you touch them out of water. As I was flying over some mountain resort (I routinely fly in my dreams, but it feels more like a very low gravity falling I can control, like using a parachute in GTA San Andreas), I dumped them to a location that resembled the garden level of Prince of Persia: Warrior Within for my cat to eat. It didn't want to.