Prime slimes are giant yellow slimes with majestic, fluffy white beards with a diminutive knight standing atop of them. The knights have golden and black crowns, a set of golden armour, and dual wield a pair of golden swords. They sport beards similar to the yellow slimes. The slimes themselves have a helmet-like visor and wear a short purple cape with red lightning. They enhance their strength with Oomph before unleashing powerful sword attacks.
Legendary slime soldiers who amplify their attack with Oomph, and whose lightning speed lets them attack twice on the trot.
Rumors abound about these brutal blobs. Some say they're heaven-sent, others that they're the saviors of slimekind.
A prime slime is one of the eight types of slimes that must be defeated for Quest #165: Shame on Goo. The quest can be repeated as many times as desired.