Cute little game! I included it in my compilation video series of all of the GAMES MADE QUICK??? Games, if you'd like to take a look :)

No, each room is an object, generated on command when you use a door. The coordinates are checked, and if the room already exists, you go there. Otherwise, it creates a new room, with it's doors and walls based on the configuration of all the rooms that already exist, and adds itself to the list.

Oh! I assumed you had generated the floor at once, since rooms were the same when I returned to them. Yeah, I'm pretty sure that would be easier.

The ending was kinda a last minute thing, but when I realized how well it fit with the mechanics I couldn't resist, haha.

Yeah, I generated the floors room by room as you entered them, and there was no guarantee of any specific thing showing up on a floor (though I did try to make stairs common enough you would usually find them). I'm aware of that bug with the door linking, but I had already spent over three days on the rooms alone and it didn't happen all that often, so I let it be. In retrospect it might be easier to generate the whole floor at a time, which would probably fix both of those problems.

This is SO CUTE. I can't believe you managed to cram all these Pokémon into these teeny tiny tiles. And I somehow didn't see the ending coming! Amazing.

At one point I did end up on a floor that was a single vertical hallway with no stairs, so I was unable to deliver my presents. :) I also saw one or two spots where a door led into a room that didn't have a door leading back. I can imagine this was enough of a pain to get working at all, though, haha. Thank you!