This is by depth bomb, so there should be something creepy in it...I think those eggs count? Like the one with the eye on it.

Yume nikki is the creepy thing.

There is blood on the egg next to the green one on the right

These are actually the effects, you can drop them at the world leading to others by choosing the effect and then pressing 5. The bloody egg is, for example, the severed head effect.

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