First appearance Episode 13
Gender Presumbly Male
Species / Type Alien
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Muku is an alien in Keroro Gunso. He was one of the three aliens invading Pekopon besides the Keroro Platoon.


According to the Narrator, Muku is an alien to invade Pekopon, despite this, he is harmless, he is just to let his hosts feel his presence.


He was first seen trying to distract (at least scare) Melody Honey while she was taking a shower. Despite she feels a strange presence, Melody doesn't seem to mind. Later, he was hanged by a string from the ceiling hole (by Dororo\Koyuki).


He is a humanoid alien resembling an old man, he has round eyes and fair brown skin.

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