Big Laughs on Ghost Island (キャハハでゆうれい島 Kyahaha deyuurei shima) is the 172nd episode of Dr. Slump Arale-chan.
Synopsis[]
One day Senbei tries to invent a teleporter, but somehow he invents the 3D hologram machine! Arale starts playing with the machine and she starts to show up & disappear all over the place!!