This is a little experiment I decided to do. I set up a conveyor belt going in a clockwise direction around the room with orange pools in each corner, each hiding a breeding pool underneath. It's a little hard to see with all the shit the Alices are spouting but it's all barriers except for the center top, where I left an open trail to the center with some garbage for food that is quite reachable, should they not stumble with the garbage chutes on each side of this little bridge. Needless to say, the game gets real slow fast; but it does not fail to entertain, nonetheless. I can do more like these if anybody wants to request some sort of experiment, otherwise the game is available in the all-purpose yukkuri game thread, linked here:
Yeah, I tried this with the 253e, as seen on the pic on the top right corner. On 1.0e you can breed a bunch of koyukkuri by grabbing adult yukkuri, placing them on orange and injecting plenty of paste. They crawl around for a good while doing nothing but complain but they eventually spit out a bunch of baby yukkuri.