Ghost

Light, agile Scary Monsters that can phase walk through obstacles.

Overview
These are the three versions of the Ghost monster. Level 1 is unlocked after you attach the Ghost room to your Mansion. Level 2 is unlocked attaching a second Ghost oom to an existing one, side by side (vertically or horizontally). Level 3 is unlocked when four Ghost rooms are attached to each other, forming a big cube.