Grubs are insect-like aliens who are often seen working for Zurg on Planet Z.
They are small bug like creatures. Like the LGMs, they all look identical. They are blue and resemble rolly pollies in body structure, but unlike rolly pollies, have large eyes and mouths.
It is unknown how long they have worked for the Evil Emperor Zurg, but they are serving him against their will.
- Zurg likes to use them as bowling pins when he's in the mood for a game of "Evil Bowling".