Oversomnia/guide

Dust Bunny
Go to the Apartments. When you exit the room where you came from, immediately take the stairs and continue until you see more doors. Take the third one and go downstairs. Go down, left, down and right. Interact with the robot.

Vampirism
Go to the Cuckoo Clock World. Go right and up, then enter the clock with a door. Interact with the cat. Follow the path that'll take you to a village. Go left and talk to the NPC, who will ask you for a key that can be found by taking the other path at the south. When you find it, bring it to the same NPC; the last house is now accessible. Enter it and take the other door. In the new area, interact with the boy.

Tuning Fork
Go to the Aquarium and take the door at the north-east. Once you're underwater, find the southern path, then take the door. Go downstairs and enter the door at the right. Go downstairs again and interact with the Tunning Fork.

Mobile Phone
wip.