Phobia/guide

Floating
Enter the Night Sky World. Go south a bit and all way west, find and interact with the floating pink spirit.

Compass
Enter the Bloody Heart World. Go right and interact with the blood-stained compass.

Longer Hair
Enter the Night Sky World. Go left and go between the two red teleporters. From where you're teleported, take the path to the right and go between the two teleporters. Go to, and interact with, the green vine using the map below. In Snow World, go south and interact with the gray-haired girl.

Blood Bag
Enter the Night Sky World. Go left and go between the two red teleporters. From where you're teleported, take the path to the right and go between the two teleporters. Go to, and interact with, the green vine using the map below.

In Snow World, go right and between the row of plants. Go up a bit and left and enter the pink building. Go left and you'll now be on a balcony. Make your way upwards and find/interact with the black haired girl. Go up through the doorway. Interact with the frozen cube.